Home / 646,787.58-970,397.25-286,908.76

Finding the Fourth Proportional to 646,787.58, 970,397.25 and 286,908.76

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Solution

The fourth proportional to 646,787.58, 970,397.25 and 286,908.76 is: 430,458.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,787.58 : 970,397.25 = 286,908.76 : x
  2. Step 2: Convert to fraction form
    646,787.58/970,397.25 = 286,908.76/x
  3. Step 3: Cross multiply
    646,787.58x = 970,397.25 × 286,908.76
  4. Step 4: Simplify right side
    646,787.58x = 278,415,471,704.91
  5. Step 5: Solve for x
    x = 278,415,471,704.91/646,787.58
  6. Step 6: Final answer
    x = 430,458.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.