Home / 687,535.34-948,784.46-381,593.76

Finding the Fourth Proportional to 687,535.34, 948,784.46 and 381,593.76

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Solution

The fourth proportional to 687,535.34, 948,784.46 and 381,593.76 is: 526,591.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,535.34 : 948,784.46 = 381,593.76 : x
  2. Step 2: Convert to fraction form
    687,535.34/948,784.46 = 381,593.76/x
  3. Step 3: Cross multiply
    687,535.34x = 948,784.46 × 381,593.76
  4. Step 4: Simplify right side
    687,535.34x = 362,050,227,613.00
  5. Step 5: Solve for x
    x = 362,050,227,613.00/687,535.34
  6. Step 6: Final answer
    x = 526,591.45

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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.