Home / 1,102,227.03-1,653,445.13-428,360.40

Finding the Fourth Proportional to 1,102,227.03, 1,653,445.13 and 428,360.40

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Solution

The fourth proportional to 1,102,227.03, 1,653,445.13 and 428,360.40 is: 642,581.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,227.03 : 1,653,445.13 = 428,360.40 : x
  2. Step 2: Convert to fraction form
    1,102,227.03/1,653,445.13 = 428,360.40/x
  3. Step 3: Cross multiply
    1,102,227.03x = 1,653,445.13 × 428,360.40
  4. Step 4: Simplify right side
    1,102,227.03x = 708,270,415,123.05
  5. Step 5: Solve for x
    x = 708,270,415,123.05/1,102,227.03
  6. Step 6: Final answer
    x = 642,581.24

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Double scale
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1.5x scale

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.