Home / 1,077,489.38-1,616,242.16-478,289.45

Finding the Fourth Proportional to 1,077,489.38, 1,616,242.16 and 478,289.45

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Solution

The fourth proportional to 1,077,489.38, 1,616,242.16 and 478,289.45 is: 717,437.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,489.38 : 1,616,242.16 = 478,289.45 : x
  2. Step 2: Convert to fraction form
    1,077,489.38/1,616,242.16 = 478,289.45/x
  3. Step 3: Cross multiply
    1,077,489.38x = 1,616,242.16 × 478,289.45
  4. Step 4: Simplify right side
    1,077,489.38x = 773,031,566,887.73
  5. Step 5: Solve for x
    x = 773,031,566,887.73/1,077,489.38
  6. Step 6: Final answer
    x = 717,437.76

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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.