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Finding the Fourth Proportional to 498,835.04, 688,396 and 272,480.48

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Solution

The fourth proportional to 498,835.04, 688,396 and 272,480.48 is: 376,025.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,835.04 : 688,396 = 272,480.48 : x
  2. Step 2: Convert to fraction form
    498,835.04/688,396 = 272,480.48/x
  3. Step 3: Cross multiply
    498,835.04x = 688,396 × 272,480.48
  4. Step 4: Simplify right side
    498,835.04x = 187,574,472,510.08
  5. Step 5: Solve for x
    x = 187,574,472,510.08/498,835.04
  6. Step 6: Final answer
    x = 376,025.05

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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.