Home / 772,933.60-1,159,400.40-640,223.20

Finding the Fourth Proportional to 772,933.60, 1,159,400.40 and 640,223.20

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Solution

The fourth proportional to 772,933.60, 1,159,400.40 and 640,223.20 is: 960,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,933.60 : 1,159,400.40 = 640,223.20 : x
  2. Step 2: Convert to fraction form
    772,933.60/1,159,400.40 = 640,223.20/x
  3. Step 3: Cross multiply
    772,933.60x = 1,159,400.40 × 640,223.20
  4. Step 4: Simplify right side
    772,933.60x = 742,275,034,169.28
  5. Step 5: Solve for x
    x = 742,275,034,169.28/772,933.60
  6. Step 6: Final answer
    x = 960,334.80

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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.