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Finding the Fourth Proportional to 604,829.60, 907,244.40 and 424,426.40

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Solution

The fourth proportional to 604,829.60, 907,244.40 and 424,426.40 is: 636,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,829.60 : 907,244.40 = 424,426.40 : x
  2. Step 2: Convert to fraction form
    604,829.60/907,244.40 = 424,426.40/x
  3. Step 3: Cross multiply
    604,829.60x = 907,244.40 × 424,426.40
  4. Step 4: Simplify right side
    604,829.60x = 385,058,474,612.16
  5. Step 5: Solve for x
    x = 385,058,474,612.16/604,829.60
  6. Step 6: Final answer
    x = 636,639.60

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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.