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Finding the Fourth Proportional to 425,331.30, 636,946.52 and 317,000.94

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Solution

The fourth proportional to 425,331.30, 636,946.52 and 317,000.94 is: 474,718.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,331.30 : 636,946.52 = 317,000.94 : x
  2. Step 2: Convert to fraction form
    425,331.30/636,946.52 = 317,000.94/x
  3. Step 3: Cross multiply
    425,331.30x = 636,946.52 × 317,000.94
  4. Step 4: Simplify right side
    425,331.30x = 201,912,641,596.18
  5. Step 5: Solve for x
    x = 201,912,641,596.18/425,331.30
  6. Step 6: Final answer
    x = 474,718.51

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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.