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Finding the Fourth Proportional to 617,420.17, 926,296.50 and 317,737.45

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Solution

The fourth proportional to 617,420.17, 926,296.50 and 317,737.45 is: 476,691.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,420.17 : 926,296.50 = 317,737.45 : x
  2. Step 2: Convert to fraction form
    617,420.17/926,296.50 = 317,737.45/x
  3. Step 3: Cross multiply
    617,420.17x = 926,296.50 × 317,737.45
  4. Step 4: Simplify right side
    617,420.17x = 294,319,087,853.93
  5. Step 5: Solve for x
    x = 294,319,087,853.93/617,420.17
  6. Step 6: Final answer
    x = 476,691.73

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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.