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Finding the Fourth Proportional to 617,975.70, 926,963.55 and 477,834.90

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Solution

The fourth proportional to 617,975.70, 926,963.55 and 477,834.90 is: 716,752.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,975.70 : 926,963.55 = 477,834.90 : x
  2. Step 2: Convert to fraction form
    617,975.70/926,963.55 = 477,834.90/x
  3. Step 3: Cross multiply
    617,975.70x = 926,963.55 × 477,834.90
  4. Step 4: Simplify right side
    617,975.70x = 442,935,535,217.90
  5. Step 5: Solve for x
    x = 442,935,535,217.90/617,975.70
  6. Step 6: Final answer
    x = 716,752.35

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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.