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Finding the Fourth Proportional to 519,121, 715,737.90 and 433,203.76

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Solution

The fourth proportional to 519,121, 715,737.90 and 433,203.76 is: 597,279.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,121 : 715,737.90 = 433,203.76 : x
  2. Step 2: Convert to fraction form
    519,121/715,737.90 = 433,203.76/x
  3. Step 3: Cross multiply
    519,121x = 715,737.90 × 433,203.76
  4. Step 4: Simplify right side
    519,121x = 310,060,349,454.50
  5. Step 5: Solve for x
    x = 310,060,349,454.50/519,121
  6. Step 6: Final answer
    x = 597,279.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.