Home / 961,714.08-1,443,024.72-429,187.68

Finding the Fourth Proportional to 961,714.08, 1,443,024.72 and 429,187.68

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Solution

The fourth proportional to 961,714.08, 1,443,024.72 and 429,187.68 is: 643,983.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,714.08 : 1,443,024.72 = 429,187.68 : x
  2. Step 2: Convert to fraction form
    961,714.08/1,443,024.72 = 429,187.68/x
  3. Step 3: Cross multiply
    961,714.08x = 1,443,024.72 × 429,187.68
  4. Step 4: Simplify right side
    961,714.08x = 619,328,431,759.45
  5. Step 5: Solve for x
    x = 619,328,431,759.45/961,714.08
  6. Step 6: Final answer
    x = 643,983.95

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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.