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Finding the Fourth Proportional to 978,033.24, 1,349,750.82 and 548,341.20

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Solution

The fourth proportional to 978,033.24, 1,349,750.82 and 548,341.20 is: 756,747.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,033.24 : 1,349,750.82 = 548,341.20 : x
  2. Step 2: Convert to fraction form
    978,033.24/1,349,750.82 = 548,341.20/x
  3. Step 3: Cross multiply
    978,033.24x = 1,349,750.82 × 548,341.20
  4. Step 4: Simplify right side
    978,033.24x = 740,123,984,339.78
  5. Step 5: Solve for x
    x = 740,123,984,339.78/978,033.24
  6. Step 6: Final answer
    x = 756,747.27

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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.