Home / 991,640.10-1,487,460.15-711,704.10

Finding the Fourth Proportional to 991,640.10, 1,487,460.15 and 711,704.10

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Solution

The fourth proportional to 991,640.10, 1,487,460.15 and 711,704.10 is: 1,067,556.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,640.10 : 1,487,460.15 = 711,704.10 : x
  2. Step 2: Convert to fraction form
    991,640.10/1,487,460.15 = 711,704.10/x
  3. Step 3: Cross multiply
    991,640.10x = 1,487,460.15 × 711,704.10
  4. Step 4: Simplify right side
    991,640.10x = 1,058,631,487,341.61
  5. Step 5: Solve for x
    x = 1,058,631,487,341.61/991,640.10
  6. Step 6: Final answer
    x = 1,067,556.15

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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.