Home / 1,130,411.60-1,695,617.40-681,639.20

Finding the Fourth Proportional to 1,130,411.60, 1,695,617.40 and 681,639.20

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Solution

The fourth proportional to 1,130,411.60, 1,695,617.40 and 681,639.20 is: 1,022,458.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,411.60 : 1,695,617.40 = 681,639.20 : x
  2. Step 2: Convert to fraction form
    1,130,411.60/1,695,617.40 = 681,639.20/x
  3. Step 3: Cross multiply
    1,130,411.60x = 1,695,617.40 × 681,639.20
  4. Step 4: Simplify right side
    1,130,411.60x = 1,155,799,288,042.08
  5. Step 5: Solve for x
    x = 1,155,799,288,042.08/1,130,411.60
  6. Step 6: Final answer
    x = 1,022,458.80

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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.