Home / 1,120,038.30-1,680,713.55-410,138.10

Finding the Fourth Proportional to 1,120,038.30, 1,680,713.55 and 410,138.10

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Solution

The fourth proportional to 1,120,038.30, 1,680,713.55 and 410,138.10 is: 615,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,038.30 : 1,680,713.55 = 410,138.10 : x
  2. Step 2: Convert to fraction form
    1,120,038.30/1,680,713.55 = 410,138.10/x
  3. Step 3: Cross multiply
    1,120,038.30x = 1,680,713.55 × 410,138.10
  4. Step 4: Simplify right side
    1,120,038.30x = 689,324,662,041.26
  5. Step 5: Solve for x
    x = 689,324,662,041.26/1,120,038.30
  6. Step 6: Final answer
    x = 615,447.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.