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Finding the Fourth Proportional to 686,049.40, 946,275.72 and 482,532.04

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Solution

The fourth proportional to 686,049.40, 946,275.72 and 482,532.04 is: 665,561.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,049.40 : 946,275.72 = 482,532.04 : x
  2. Step 2: Convert to fraction form
    686,049.40/946,275.72 = 482,532.04/x
  3. Step 3: Cross multiply
    686,049.40x = 946,275.72 × 482,532.04
  4. Step 4: Simplify right side
    686,049.40x = 456,608,353,574.07
  5. Step 5: Solve for x
    x = 456,608,353,574.07/686,049.40
  6. Step 6: Final answer
    x = 665,561.92

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.