Home / 715,877.10-1,073,815.65-316,312.20

Finding the Fourth Proportional to 715,877.10, 1,073,815.65 and 316,312.20

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Solution

The fourth proportional to 715,877.10, 1,073,815.65 and 316,312.20 is: 474,468.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,877.10 : 1,073,815.65 = 316,312.20 : x
  2. Step 2: Convert to fraction form
    715,877.10/1,073,815.65 = 316,312.20/x
  3. Step 3: Cross multiply
    715,877.10x = 1,073,815.65 × 316,312.20
  4. Step 4: Simplify right side
    715,877.10x = 339,660,990,645.93
  5. Step 5: Solve for x
    x = 339,660,990,645.93/715,877.10
  6. Step 6: Final answer
    x = 474,468.30

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Double scale
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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.