Home / 786,038.40-1,178,474.40-253,252.80

Finding the Fourth Proportional to 786,038.40, 1,178,474.40 and 253,252.80

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Solution

The fourth proportional to 786,038.40, 1,178,474.40 and 253,252.80 is: 379,691.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,038.40 : 1,178,474.40 = 253,252.80 : x
  2. Step 2: Convert to fraction form
    786,038.40/1,178,474.40 = 253,252.80/x
  3. Step 3: Cross multiply
    786,038.40x = 1,178,474.40 × 253,252.80
  4. Step 4: Simplify right side
    786,038.40x = 298,451,941,528.32
  5. Step 5: Solve for x
    x = 298,451,941,528.32/786,038.40
  6. Step 6: Final answer
    x = 379,691.30

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.