Home / 1,386,830.60-2,080,245.90-817,627.40

Finding the Fourth Proportional to 1,386,830.60, 2,080,245.90 and 817,627.40

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Solution

The fourth proportional to 1,386,830.60, 2,080,245.90 and 817,627.40 is: 1,226,441.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,830.60 : 2,080,245.90 = 817,627.40 : x
  2. Step 2: Convert to fraction form
    1,386,830.60/2,080,245.90 = 817,627.40/x
  3. Step 3: Cross multiply
    1,386,830.60x = 2,080,245.90 × 817,627.40
  4. Step 4: Simplify right side
    1,386,830.60x = 1,700,866,046,577.66
  5. Step 5: Solve for x
    x = 1,700,866,046,577.66/1,386,830.60
  6. Step 6: Final answer
    x = 1,226,441.10

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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.