Home / 970,108.80-1,455,422.40-865,651.20

Finding the Fourth Proportional to 970,108.80, 1,455,422.40 and 865,651.20

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Solution

The fourth proportional to 970,108.80, 1,455,422.40 and 865,651.20 is: 1,298,708.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,108.80 : 1,455,422.40 = 865,651.20 : x
  2. Step 2: Convert to fraction form
    970,108.80/1,455,422.40 = 865,651.20/x
  3. Step 3: Cross multiply
    970,108.80x = 1,455,422.40 × 865,651.20
  4. Step 4: Simplify right side
    970,108.80x = 1,259,888,147,066.88
  5. Step 5: Solve for x
    x = 1,259,888,147,066.88/970,108.80
  6. Step 6: Final answer
    x = 1,298,708.09

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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.