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Finding the Fourth Proportional to 492,910.76, 735,800.50 and 433,123.65

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Solution

The fourth proportional to 492,910.76, 735,800.50 and 433,123.65 is: 646,552.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,910.76 : 735,800.50 = 433,123.65 : x
  2. Step 2: Convert to fraction form
    492,910.76/735,800.50 = 433,123.65/x
  3. Step 3: Cross multiply
    492,910.76x = 735,800.50 × 433,123.65
  4. Step 4: Simplify right side
    492,910.76x = 318,692,596,336.91
  5. Step 5: Solve for x
    x = 318,692,596,336.91/492,910.76
  6. Step 6: Final answer
    x = 646,552.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.