Home / 1,188,010.80-1,780,979.40-714,193.20

Finding the Fourth Proportional to 1,188,010.80, 1,780,979.40 and 714,193.20

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Solution

The fourth proportional to 1,188,010.80, 1,780,979.40 and 714,193.20 is: 1,070,666.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,010.80 : 1,780,979.40 = 714,193.20 : x
  2. Step 2: Convert to fraction form
    1,188,010.80/1,780,979.40 = 714,193.20/x
  3. Step 3: Cross multiply
    1,188,010.80x = 1,780,979.40 × 714,193.20
  4. Step 4: Simplify right side
    1,188,010.80x = 1,271,963,376,820.08
  5. Step 5: Solve for x
    x = 1,271,963,376,820.08/1,188,010.80
  6. Step 6: Final answer
    x = 1,070,666.51

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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.