Home / 912,812.10-1,369,218.15-247,964.10

Finding the Fourth Proportional to 912,812.10, 1,369,218.15 and 247,964.10

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Solution

The fourth proportional to 912,812.10, 1,369,218.15 and 247,964.10 is: 371,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,812.10 : 1,369,218.15 = 247,964.10 : x
  2. Step 2: Convert to fraction form
    912,812.10/1,369,218.15 = 247,964.10/x
  3. Step 3: Cross multiply
    912,812.10x = 1,369,218.15 × 247,964.10
  4. Step 4: Simplify right side
    912,812.10x = 339,516,946,268.42
  5. Step 5: Solve for x
    x = 339,516,946,268.42/912,812.10
  6. Step 6: Final answer
    x = 371,946.15

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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.