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Finding the Fourth Proportional to 507,615.20, 761,422.80 and 452,502.80

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Solution

The fourth proportional to 507,615.20, 761,422.80 and 452,502.80 is: 678,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,615.20 : 761,422.80 = 452,502.80 : x
  2. Step 2: Convert to fraction form
    507,615.20/761,422.80 = 452,502.80/x
  3. Step 3: Cross multiply
    507,615.20x = 761,422.80 × 452,502.80
  4. Step 4: Simplify right side
    507,615.20x = 344,545,948,983.84
  5. Step 5: Solve for x
    x = 344,545,948,983.84/507,615.20
  6. Step 6: Final answer
    x = 678,754.20

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Similar ratio
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1.5x scale

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.