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Finding the Fourth Proportional to 928,561, 1,393,235.16 and 507,344.80

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Solution

The fourth proportional to 928,561, 1,393,235.16 and 507,344.80 is: 761,232.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,561 : 1,393,235.16 = 507,344.80 : x
  2. Step 2: Convert to fraction form
    928,561/1,393,235.16 = 507,344.80/x
  3. Step 3: Cross multiply
    928,561x = 1,393,235.16 × 507,344.80
  4. Step 4: Simplify right side
    928,561x = 706,850,613,603.17
  5. Step 5: Solve for x
    x = 706,850,613,603.17/928,561
  6. Step 6: Final answer
    x = 761,232.29

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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.