Home / 1,008,318.50-1,391,509.23-555,638.66

Finding the Fourth Proportional to 1,008,318.50, 1,391,509.23 and 555,638.66

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Solution

The fourth proportional to 1,008,318.50, 1,391,509.23 and 555,638.66 is: 766,797.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,318.50 : 1,391,509.23 = 555,638.66 : x
  2. Step 2: Convert to fraction form
    1,008,318.50/1,391,509.23 = 555,638.66/x
  3. Step 3: Cross multiply
    1,008,318.50x = 1,391,509.23 × 555,638.66
  4. Step 4: Simplify right side
    1,008,318.50x = 773,176,323,934.83
  5. Step 5: Solve for x
    x = 773,176,323,934.83/1,008,318.50
  6. Step 6: Final answer
    x = 766,797.72

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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.