Home / 872,615.20-1,204,188.24-570,802.72

Finding the Fourth Proportional to 872,615.20, 1,204,188.24 and 570,802.72

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Solution

The fourth proportional to 872,615.20, 1,204,188.24 and 570,802.72 is: 787,694.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,615.20 : 1,204,188.24 = 570,802.72 : x
  2. Step 2: Convert to fraction form
    872,615.20/1,204,188.24 = 570,802.72/x
  3. Step 3: Cross multiply
    872,615.20x = 1,204,188.24 × 570,802.72
  4. Step 4: Simplify right side
    872,615.20x = 687,353,922,784.01
  5. Step 5: Solve for x
    x = 687,353,922,784.01/872,615.20
  6. Step 6: Final answer
    x = 787,694.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.