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Finding the Fourth Proportional to 516,009.20, 772,264.20 and 453,023.60

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Solution

The fourth proportional to 516,009.20, 772,264.20 and 453,023.60 is: 677,999.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,009.20 : 772,264.20 = 453,023.60 : x
  2. Step 2: Convert to fraction form
    516,009.20/772,264.20 = 453,023.60/x
  3. Step 3: Cross multiply
    516,009.20x = 772,264.20 × 453,023.60
  4. Step 4: Simplify right side
    516,009.20x = 349,853,908,035.12
  5. Step 5: Solve for x
    x = 349,853,908,035.12/516,009.20
  6. Step 6: Final answer
    x = 677,999.36

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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.