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Finding the Fourth Proportional to 598,396.61, 826,330.61 and 445,378.91

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Solution

The fourth proportional to 598,396.61, 826,330.61 and 445,378.91 is: 615,027.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,396.61 : 826,330.61 = 445,378.91 : x
  2. Step 2: Convert to fraction form
    598,396.61/826,330.61 = 445,378.91/x
  3. Step 3: Cross multiply
    598,396.61x = 826,330.61 × 445,378.91
  4. Step 4: Simplify right side
    598,396.61x = 368,030,223,363.23
  5. Step 5: Solve for x
    x = 368,030,223,363.23/598,396.61
  6. Step 6: Final answer
    x = 615,027.25

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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.