Home / 1,078,186.40-1,617,279.60-912,298.40

Finding the Fourth Proportional to 1,078,186.40, 1,617,279.60 and 912,298.40

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Solution

The fourth proportional to 1,078,186.40, 1,617,279.60 and 912,298.40 is: 1,368,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,186.40 : 1,617,279.60 = 912,298.40 : x
  2. Step 2: Convert to fraction form
    1,078,186.40/1,617,279.60 = 912,298.40/x
  3. Step 3: Cross multiply
    1,078,186.40x = 1,617,279.60 × 912,298.40
  4. Step 4: Simplify right side
    1,078,186.40x = 1,475,441,591,432.64
  5. Step 5: Solve for x
    x = 1,475,441,591,432.64/1,078,186.40
  6. Step 6: Final answer
    x = 1,368,447.60

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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.