Home / 859,031.52-1,287,575.04-437,416.80

Finding the Fourth Proportional to 859,031.52, 1,287,575.04 and 437,416.80

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Solution

The fourth proportional to 859,031.52, 1,287,575.04 and 437,416.80 is: 655,630.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,031.52 : 1,287,575.04 = 437,416.80 : x
  2. Step 2: Convert to fraction form
    859,031.52/1,287,575.04 = 437,416.80/x
  3. Step 3: Cross multiply
    859,031.52x = 1,287,575.04 × 437,416.80
  4. Step 4: Simplify right side
    859,031.52x = 563,206,953,756.67
  5. Step 5: Solve for x
    x = 563,206,953,756.67/859,031.52
  6. Step 6: Final answer
    x = 655,630.14

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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.