Home / 421,121.28-581,761.98-364,434.24

Finding the Fourth Proportional to 421,121.28, 581,761.98 and 364,434.24

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Solution

The fourth proportional to 421,121.28, 581,761.98 and 364,434.24 is: 503,451.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,121.28 : 581,761.98 = 364,434.24 : x
  2. Step 2: Convert to fraction form
    421,121.28/581,761.98 = 364,434.24/x
  3. Step 3: Cross multiply
    421,121.28x = 581,761.98 × 364,434.24
  4. Step 4: Simplify right side
    421,121.28x = 212,013,985,042.20
  5. Step 5: Solve for x
    x = 212,013,985,042.20/421,121.28
  6. Step 6: Final answer
    x = 503,451.13

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1.5x scale

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.