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Finding the Fourth Proportional to 522,686.22, 720,543.48 and 369,454.06

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Solution

The fourth proportional to 522,686.22, 720,543.48 and 369,454.06 is: 509,306.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,686.22 : 720,543.48 = 369,454.06 : x
  2. Step 2: Convert to fraction form
    522,686.22/720,543.48 = 369,454.06/x
  3. Step 3: Cross multiply
    522,686.22x = 720,543.48 × 369,454.06
  4. Step 4: Simplify right side
    522,686.22x = 266,207,715,685.94
  5. Step 5: Solve for x
    x = 266,207,715,685.94/522,686.22
  6. Step 6: Final answer
    x = 509,306.94

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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.