Home / 744,502.24-1,116,105.36-478,338.40

Finding the Fourth Proportional to 744,502.24, 1,116,105.36 and 478,338.40

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Solution

The fourth proportional to 744,502.24, 1,116,105.36 and 478,338.40 is: 717,091.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,502.24 : 1,116,105.36 = 478,338.40 : x
  2. Step 2: Convert to fraction form
    744,502.24/1,116,105.36 = 478,338.40/x
  3. Step 3: Cross multiply
    744,502.24x = 1,116,105.36 × 478,338.40
  4. Step 4: Simplify right side
    744,502.24x = 533,876,052,133.82
  5. Step 5: Solve for x
    x = 533,876,052,133.82/744,502.24
  6. Step 6: Final answer
    x = 717,091.26

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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.