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Finding the Fourth Proportional to 498,894.03, 688,472.58 and 272,541.15

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Solution

The fourth proportional to 498,894.03, 688,472.58 and 272,541.15 is: 376,106.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,894.03 : 688,472.58 = 272,541.15 : x
  2. Step 2: Convert to fraction form
    498,894.03/688,472.58 = 272,541.15/x
  3. Step 3: Cross multiply
    498,894.03x = 688,472.58 × 272,541.15
  4. Step 4: Simplify right side
    498,894.03x = 187,637,108,696.67
  5. Step 5: Solve for x
    x = 187,637,108,696.67/498,894.03
  6. Step 6: Final answer
    x = 376,106.14

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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.