Home / 836,404.23-1,255,237.29-387,440.13

Finding the Fourth Proportional to 836,404.23, 1,255,237.29 and 387,440.13

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Solution

The fourth proportional to 836,404.23, 1,255,237.29 and 387,440.13 is: 581,452.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,404.23 : 1,255,237.29 = 387,440.13 : x
  2. Step 2: Convert to fraction form
    836,404.23/1,255,237.29 = 387,440.13/x
  3. Step 3: Cross multiply
    836,404.23x = 1,255,237.29 × 387,440.13
  4. Step 4: Simplify right side
    836,404.23x = 486,329,298,818.45
  5. Step 5: Solve for x
    x = 486,329,298,818.45/836,404.23
  6. Step 6: Final answer
    x = 581,452.46

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Double scale
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1.5x scale

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.