Home / 498,815.02-688,364.80-272,460.52

Finding the Fourth Proportional to 498,815.02, 688,364.80 and 272,460.52

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Solution

The fourth proportional to 498,815.02, 688,364.80 and 272,460.52 is: 375,995.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,815.02 : 688,364.80 = 272,460.52 : x
  2. Step 2: Convert to fraction form
    498,815.02/688,364.80 = 272,460.52/x
  3. Step 3: Cross multiply
    498,815.02x = 688,364.80 × 272,460.52
  4. Step 4: Simplify right side
    498,815.02x = 187,552,227,915.87
  5. Step 5: Solve for x
    x = 187,552,227,915.87/498,815.02
  6. Step 6: Final answer
    x = 375,995.55

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1.5x scale

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.