Home / 498,011.02-687,247.08-283,146.46

Finding the Fourth Proportional to 498,011.02, 687,247.08 and 283,146.46

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Solution

The fourth proportional to 498,011.02, 687,247.08 and 283,146.46 is: 390,737.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,011.02 : 687,247.08 = 283,146.46 : x
  2. Step 2: Convert to fraction form
    498,011.02/687,247.08 = 283,146.46/x
  3. Step 3: Cross multiply
    498,011.02x = 687,247.08 × 283,146.46
  4. Step 4: Simplify right side
    498,011.02x = 194,591,577,847.34
  5. Step 5: Solve for x
    x = 194,591,577,847.34/498,011.02
  6. Step 6: Final answer
    x = 390,737.49

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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.