Home / 679,944.10-1,019,916.15-280,452.10

Finding the Fourth Proportional to 679,944.10, 1,019,916.15 and 280,452.10

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Solution

The fourth proportional to 679,944.10, 1,019,916.15 and 280,452.10 is: 420,678.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,944.10 : 1,019,916.15 = 280,452.10 : x
  2. Step 2: Convert to fraction form
    679,944.10/1,019,916.15 = 280,452.10/x
  3. Step 3: Cross multiply
    679,944.10x = 1,019,916.15 × 280,452.10
  4. Step 4: Simplify right side
    679,944.10x = 286,037,626,091.42
  5. Step 5: Solve for x
    x = 286,037,626,091.42/679,944.10
  6. Step 6: Final answer
    x = 420,678.15

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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.