Home / 724,209.10-1,085,962.92-424,787.74

Finding the Fourth Proportional to 724,209.10, 1,085,962.92 and 424,787.74

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Solution

The fourth proportional to 724,209.10, 1,085,962.92 and 424,787.74 is: 636,975.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,209.10 : 1,085,962.92 = 424,787.74 : x
  2. Step 2: Convert to fraction form
    724,209.10/1,085,962.92 = 424,787.74/x
  3. Step 3: Cross multiply
    724,209.10x = 1,085,962.92 × 424,787.74
  4. Step 4: Simplify right side
    724,209.10x = 461,303,734,510.60
  5. Step 5: Solve for x
    x = 461,303,734,510.60/724,209.10
  6. Step 6: Final answer
    x = 636,975.89

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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.