Home / 1,008,340.50-1,391,539.05-555,660.66

Finding the Fourth Proportional to 1,008,340.50, 1,391,539.05 and 555,660.66

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Solution

The fourth proportional to 1,008,340.50, 1,391,539.05 and 555,660.66 is: 766,827.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,340.50 : 1,391,539.05 = 555,660.66 : x
  2. Step 2: Convert to fraction form
    1,008,340.50/1,391,539.05 = 555,660.66/x
  3. Step 3: Cross multiply
    1,008,340.50x = 1,391,539.05 × 555,660.66
  4. Step 4: Simplify right side
    1,008,340.50x = 773,223,506,938.77
  5. Step 5: Solve for x
    x = 773,223,506,938.77/1,008,340.50
  6. Step 6: Final answer
    x = 766,827.78

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Double scale
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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.