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Finding the Fourth Proportional to 392,325.42, 539,710.19 and 343,708.41

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Solution

The fourth proportional to 392,325.42, 539,710.19 and 343,708.41 is: 472,829.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,325.42 : 539,710.19 = 343,708.41 : x
  2. Step 2: Convert to fraction form
    392,325.42/539,710.19 = 343,708.41/x
  3. Step 3: Cross multiply
    392,325.42x = 539,710.19 × 343,708.41
  4. Step 4: Simplify right side
    392,325.42x = 185,502,929,547.16
  5. Step 5: Solve for x
    x = 185,502,929,547.16/392,325.42
  6. Step 6: Final answer
    x = 472,829.24

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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.