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Finding the Fourth Proportional to 564,493.61, 779,647.72 and 371,762.87

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Solution

The fourth proportional to 564,493.61, 779,647.72 and 371,762.87 is: 513,458.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,493.61 : 779,647.72 = 371,762.87 : x
  2. Step 2: Convert to fraction form
    564,493.61/779,647.72 = 371,762.87/x
  3. Step 3: Cross multiply
    564,493.61x = 779,647.72 × 371,762.87
  4. Step 4: Simplify right side
    564,493.61x = 289,844,074,995.87
  5. Step 5: Solve for x
    x = 289,844,074,995.87/564,493.61
  6. Step 6: Final answer
    x = 513,458.56

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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.