Home / 970,109.20-1,455,163.80-868,632.40

Finding the Fourth Proportional to 970,109.20, 1,455,163.80 and 868,632.40

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Solution

The fourth proportional to 970,109.20, 1,455,163.80 and 868,632.40 is: 1,302,948.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,109.20 : 1,455,163.80 = 868,632.40 : x
  2. Step 2: Convert to fraction form
    970,109.20/1,455,163.80 = 868,632.40/x
  3. Step 3: Cross multiply
    970,109.20x = 1,455,163.80 × 868,632.40
  4. Step 4: Simplify right side
    970,109.20x = 1,264,002,423,987.12
  5. Step 5: Solve for x
    x = 1,264,002,423,987.12/970,109.20
  6. Step 6: Final answer
    x = 1,302,948.60

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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.