Home / 498,647.56-688,136.16-272,293.08

Finding the Fourth Proportional to 498,647.56, 688,136.16 and 272,293.08

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Solution

The fourth proportional to 498,647.56, 688,136.16 and 272,293.08 is: 375,765.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,647.56 : 688,136.16 = 272,293.08 : x
  2. Step 2: Convert to fraction form
    498,647.56/688,136.16 = 272,293.08/x
  3. Step 3: Cross multiply
    498,647.56x = 688,136.16 × 272,293.08
  4. Step 4: Simplify right side
    498,647.56x = 187,374,714,465.77
  5. Step 5: Solve for x
    x = 187,374,714,465.77/498,647.56
  6. Step 6: Final answer
    x = 375,765.83

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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.