Home / 1,781,279.40-2,671,919.10-433,431.30

Finding the Fourth Proportional to 1,781,279.40, 2,671,919.10 and 433,431.30

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Solution

The fourth proportional to 1,781,279.40, 2,671,919.10 and 433,431.30 is: 650,146.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,279.40 : 2,671,919.10 = 433,431.30 : x
  2. Step 2: Convert to fraction form
    1,781,279.40/2,671,919.10 = 433,431.30/x
  3. Step 3: Cross multiply
    1,781,279.40x = 2,671,919.10 × 433,431.30
  4. Step 4: Simplify right side
    1,781,279.40x = 1,158,093,369,007.83
  5. Step 5: Solve for x
    x = 1,158,093,369,007.83/1,781,279.40
  6. Step 6: Final answer
    x = 650,146.95

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Double scale
Find fourth proportional to 1,781,280.40, 2,671,920.60 and 433,432.30
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.