Home / 498,037.75-687,222.74-283,154.06

Finding the Fourth Proportional to 498,037.75, 687,222.74 and 283,154.06

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Solution

The fourth proportional to 498,037.75, 687,222.74 and 283,154.06 is: 390,713.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,037.75 : 687,222.74 = 283,154.06 : x
  2. Step 2: Convert to fraction form
    498,037.75/687,222.74 = 283,154.06/x
  3. Step 3: Cross multiply
    498,037.75x = 687,222.74 × 283,154.06
  4. Step 4: Simplify right side
    498,037.75x = 194,589,911,381.27
  5. Step 5: Solve for x
    x = 194,589,911,381.27/498,037.75
  6. Step 6: Final answer
    x = 390,713.18

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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.