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Finding the Fourth Proportional to 560,589.90, 840,384.90 and 205,521.18

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Solution

The fourth proportional to 560,589.90, 840,384.90 and 205,521.18 is: 308,098.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,589.90 : 840,384.90 = 205,521.18 : x
  2. Step 2: Convert to fraction form
    560,589.90/840,384.90 = 205,521.18/x
  3. Step 3: Cross multiply
    560,589.90x = 840,384.90 × 205,521.18
  4. Step 4: Simplify right side
    560,589.90x = 172,716,896,302.18
  5. Step 5: Solve for x
    x = 172,716,896,302.18/560,589.90
  6. Step 6: Final answer
    x = 308,098.48

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1.5x scale

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.