Home / 487,981.12-732,030.72-172,373.44

Finding the Fourth Proportional to 487,981.12, 732,030.72 and 172,373.44

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Solution

The fourth proportional to 487,981.12, 732,030.72 and 172,373.44 is: 258,581.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,981.12 : 732,030.72 = 172,373.44 : x
  2. Step 2: Convert to fraction form
    487,981.12/732,030.72 = 172,373.44/x
  3. Step 3: Cross multiply
    487,981.12x = 732,030.72 × 172,373.44
  4. Step 4: Simplify right side
    487,981.12x = 126,182,653,392.08
  5. Step 5: Solve for x
    x = 126,182,653,392.08/487,981.12
  6. Step 6: Final answer
    x = 258,581.02

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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.