Home / 498,871.16-688,441.03-272,518.28

Finding the Fourth Proportional to 498,871.16, 688,441.03 and 272,518.28

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Solution

The fourth proportional to 498,871.16, 688,441.03 and 272,518.28 is: 376,074.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,871.16 : 688,441.03 = 272,518.28 : x
  2. Step 2: Convert to fraction form
    498,871.16/688,441.03 = 272,518.28/x
  3. Step 3: Cross multiply
    498,871.16x = 688,441.03 × 272,518.28
  4. Step 4: Simplify right side
    498,871.16x = 187,612,761,253.53
  5. Step 5: Solve for x
    x = 187,612,761,253.53/498,871.16
  6. Step 6: Final answer
    x = 376,074.58

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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.