Home / 842,479.40-1,263,719.10-523,614.80

Finding the Fourth Proportional to 842,479.40, 1,263,719.10 and 523,614.80

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Solution

The fourth proportional to 842,479.40, 1,263,719.10 and 523,614.80 is: 785,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,479.40 : 1,263,719.10 = 523,614.80 : x
  2. Step 2: Convert to fraction form
    842,479.40/1,263,719.10 = 523,614.80/x
  3. Step 3: Cross multiply
    842,479.40x = 1,263,719.10 × 523,614.80
  4. Step 4: Simplify right side
    842,479.40x = 661,702,023,802.68
  5. Step 5: Solve for x
    x = 661,702,023,802.68/842,479.40
  6. Step 6: Final answer
    x = 785,422.20

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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.