Home / 912,794.10-1,369,191.15-313,701.90

Finding the Fourth Proportional to 912,794.10, 1,369,191.15 and 313,701.90

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Solution

The fourth proportional to 912,794.10, 1,369,191.15 and 313,701.90 is: 470,552.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,794.10 : 1,369,191.15 = 313,701.90 : x
  2. Step 2: Convert to fraction form
    912,794.10/1,369,191.15 = 313,701.90/x
  3. Step 3: Cross multiply
    912,794.10x = 1,369,191.15 × 313,701.90
  4. Step 4: Simplify right side
    912,794.10x = 429,517,865,218.19
  5. Step 5: Solve for x
    x = 429,517,865,218.19/912,794.10
  6. Step 6: Final answer
    x = 470,552.85

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Double scale
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Similar ratio
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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.