Home / 1,109,300.40-1,660,998.15-707,767.20

Finding the Fourth Proportional to 1,109,300.40, 1,660,998.15 and 707,767.20

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Solution

The fourth proportional to 1,109,300.40, 1,660,998.15 and 707,767.20 is: 1,059,767.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,300.40 : 1,660,998.15 = 707,767.20 : x
  2. Step 2: Convert to fraction form
    1,109,300.40/1,660,998.15 = 707,767.20/x
  3. Step 3: Cross multiply
    1,109,300.40x = 1,660,998.15 × 707,767.20
  4. Step 4: Simplify right side
    1,109,300.40x = 1,175,600,009,830.68
  5. Step 5: Solve for x
    x = 1,175,600,009,830.68/1,109,300.40
  6. Step 6: Final answer
    x = 1,059,767.05

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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.