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Finding the Fourth Proportional to 918,339.36, 1,377,523 and 349,751.90

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Solution

The fourth proportional to 918,339.36, 1,377,523 and 349,751.90 is: 524,633.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,339.36 : 1,377,523 = 349,751.90 : x
  2. Step 2: Convert to fraction form
    918,339.36/1,377,523 = 349,751.90/x
  3. Step 3: Cross multiply
    918,339.36x = 1,377,523 × 349,751.90
  4. Step 4: Simplify right side
    918,339.36x = 481,791,286,543.70
  5. Step 5: Solve for x
    x = 481,791,286,543.70/918,339.36
  6. Step 6: Final answer
    x = 524,633.17

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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.