Home / 1,361,427.60-2,042,578.80-912,655.20

Finding the Fourth Proportional to 1,361,427.60, 2,042,578.80 and 912,655.20

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Solution

The fourth proportional to 1,361,427.60, 2,042,578.80 and 912,655.20 is: 1,369,276.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,427.60 : 2,042,578.80 = 912,655.20 : x
  2. Step 2: Convert to fraction form
    1,361,427.60/2,042,578.80 = 912,655.20/x
  3. Step 3: Cross multiply
    1,361,427.60x = 2,042,578.80 × 912,655.20
  4. Step 4: Simplify right side
    1,361,427.60x = 1,864,170,163,229.76
  5. Step 5: Solve for x
    x = 1,864,170,163,229.76/1,361,427.60
  6. Step 6: Final answer
    x = 1,369,276.02

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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.