Home / 1,207,347.10-1,810,364.55-408,217.30

Finding the Fourth Proportional to 1,207,347.10, 1,810,364.55 and 408,217.30

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Solution

The fourth proportional to 1,207,347.10, 1,810,364.55 and 408,217.30 is: 612,104.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,347.10 : 1,810,364.55 = 408,217.30 : x
  2. Step 2: Convert to fraction form
    1,207,347.10/1,810,364.55 = 408,217.30/x
  3. Step 3: Cross multiply
    1,207,347.10x = 1,810,364.55 × 408,217.30
  4. Step 4: Simplify right side
    1,207,347.10x = 739,022,128,616.72
  5. Step 5: Solve for x
    x = 739,022,128,616.72/1,207,347.10
  6. Step 6: Final answer
    x = 612,104.12

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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.