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Finding the Fourth Proportional to 614,690.48, 920,549.64 and 508,729.52

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Solution

The fourth proportional to 614,690.48, 920,549.64 and 508,729.52 is: 761,864.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,690.48 : 920,549.64 = 508,729.52 : x
  2. Step 2: Convert to fraction form
    614,690.48/920,549.64 = 508,729.52/x
  3. Step 3: Cross multiply
    614,690.48x = 920,549.64 × 508,729.52
  4. Step 4: Simplify right side
    614,690.48x = 468,310,776,493.37
  5. Step 5: Solve for x
    x = 468,310,776,493.37/614,690.48
  6. Step 6: Final answer
    x = 761,864.37

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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.