Home / 832,154.20-1,148,007.42-487,815.64

Finding the Fourth Proportional to 832,154.20, 1,148,007.42 and 487,815.64

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Solution

The fourth proportional to 832,154.20, 1,148,007.42 and 487,815.64 is: 672,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,154.20 : 1,148,007.42 = 487,815.64 : x
  2. Step 2: Convert to fraction form
    832,154.20/1,148,007.42 = 487,815.64/x
  3. Step 3: Cross multiply
    832,154.20x = 1,148,007.42 × 487,815.64
  4. Step 4: Simplify right side
    832,154.20x = 560,015,974,312.05
  5. Step 5: Solve for x
    x = 560,015,974,312.05/832,154.20
  6. Step 6: Final answer
    x = 672,971.40

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Double scale
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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.