Home / 631,217.48-871,085.68-359,302.88

Finding the Fourth Proportional to 631,217.48, 871,085.68 and 359,302.88

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Solution

The fourth proportional to 631,217.48, 871,085.68 and 359,302.88 is: 495,841.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,217.48 : 871,085.68 = 359,302.88 : x
  2. Step 2: Convert to fraction form
    631,217.48/871,085.68 = 359,302.88/x
  3. Step 3: Cross multiply
    631,217.48x = 871,085.68 × 359,302.88
  4. Step 4: Simplify right side
    631,217.48x = 312,983,593,550.76
  5. Step 5: Solve for x
    x = 312,983,593,550.76/631,217.48
  6. Step 6: Final answer
    x = 495,841.14

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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.