Home / 1,340,622.40-2,009,767.20-807,577.60

Finding the Fourth Proportional to 1,340,622.40, 2,009,767.20 and 807,577.60

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Solution

The fourth proportional to 1,340,622.40, 2,009,767.20 and 807,577.60 is: 1,210,663.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,622.40 : 2,009,767.20 = 807,577.60 : x
  2. Step 2: Convert to fraction form
    1,340,622.40/2,009,767.20 = 807,577.60/x
  3. Step 3: Cross multiply
    1,340,622.40x = 2,009,767.20 × 807,577.60
  4. Step 4: Simplify right side
    1,340,622.40x = 1,623,042,971,934.72
  5. Step 5: Solve for x
    x = 1,623,042,971,934.72/1,340,622.40
  6. Step 6: Final answer
    x = 1,210,663.77

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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.