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Finding the Fourth Proportional to 389,041.80, 537,032.30 and 334,377.56

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Solution

The fourth proportional to 389,041.80, 537,032.30 and 334,377.56 is: 461,573.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,041.80 : 537,032.30 = 334,377.56 : x
  2. Step 2: Convert to fraction form
    389,041.80/537,032.30 = 334,377.56/x
  3. Step 3: Cross multiply
    389,041.80x = 537,032.30 × 334,377.56
  4. Step 4: Simplify right side
    389,041.80x = 179,571,550,115.19
  5. Step 5: Solve for x
    x = 179,571,550,115.19/389,041.80
  6. Step 6: Final answer
    x = 461,573.92

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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.