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Finding the Fourth Proportional to 578,657.52, 800,070.51 and 506,830.97

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Solution

The fourth proportional to 578,657.52, 800,070.51 and 506,830.97 is: 700,760.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,657.52 : 800,070.51 = 506,830.97 : x
  2. Step 2: Convert to fraction form
    578,657.52/800,070.51 = 506,830.97/x
  3. Step 3: Cross multiply
    578,657.52x = 800,070.51 × 506,830.97
  4. Step 4: Simplify right side
    578,657.52x = 405,500,516,552.49
  5. Step 5: Solve for x
    x = 405,500,516,552.49/578,657.52
  6. Step 6: Final answer
    x = 700,760.82

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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.