Home / 648,031.20-972,046.80-529,933.20

Finding the Fourth Proportional to 648,031.20, 972,046.80 and 529,933.20

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Solution

The fourth proportional to 648,031.20, 972,046.80 and 529,933.20 is: 794,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,031.20 : 972,046.80 = 529,933.20 : x
  2. Step 2: Convert to fraction form
    648,031.20/972,046.80 = 529,933.20/x
  3. Step 3: Cross multiply
    648,031.20x = 972,046.80 × 529,933.20
  4. Step 4: Simplify right side
    648,031.20x = 515,119,871,273.76
  5. Step 5: Solve for x
    x = 515,119,871,273.76/648,031.20
  6. Step 6: Final answer
    x = 794,899.80

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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.