Home / 1,039,512.40-1,559,122.80-329,612.20

Finding the Fourth Proportional to 1,039,512.40, 1,559,122.80 and 329,612.20

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Solution

The fourth proportional to 1,039,512.40, 1,559,122.80 and 329,612.20 is: 494,372.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,512.40 : 1,559,122.80 = 329,612.20 : x
  2. Step 2: Convert to fraction form
    1,039,512.40/1,559,122.80 = 329,612.20/x
  3. Step 3: Cross multiply
    1,039,512.40x = 1,559,122.80 × 329,612.20
  4. Step 4: Simplify right side
    1,039,512.40x = 513,905,896,178.16
  5. Step 5: Solve for x
    x = 513,905,896,178.16/1,039,512.40
  6. Step 6: Final answer
    x = 494,372.07

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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.