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Finding the Fourth Proportional to 625,715.74, 863,482.50 and 353,837.01

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Solution

The fourth proportional to 625,715.74, 863,482.50 and 353,837.01 is: 488,292.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,715.74 : 863,482.50 = 353,837.01 : x
  2. Step 2: Convert to fraction form
    625,715.74/863,482.50 = 353,837.01/x
  3. Step 3: Cross multiply
    625,715.74x = 863,482.50 × 353,837.01
  4. Step 4: Simplify right side
    625,715.74x = 305,532,065,363.46
  5. Step 5: Solve for x
    x = 305,532,065,363.46/625,715.74
  6. Step 6: Final answer
    x = 488,292.12

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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.