Home / 715,233.30-986,680.90-521,225.07

Finding the Fourth Proportional to 715,233.30, 986,680.90 and 521,225.07

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Solution

The fourth proportional to 715,233.30, 986,680.90 and 521,225.07 is: 719,042.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,233.30 : 986,680.90 = 521,225.07 : x
  2. Step 2: Convert to fraction form
    715,233.30/986,680.90 = 521,225.07/x
  3. Step 3: Cross multiply
    715,233.30x = 986,680.90 × 521,225.07
  4. Step 4: Simplify right side
    715,233.30x = 514,282,813,630.63
  5. Step 5: Solve for x
    x = 514,282,813,630.63/715,233.30
  6. Step 6: Final answer
    x = 719,042.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.