Home / 815,103.70-1,124,821.22-488,601.18

Finding the Fourth Proportional to 815,103.70, 1,124,821.22 and 488,601.18

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Solution

The fourth proportional to 815,103.70, 1,124,821.22 and 488,601.18 is: 674,256.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,103.70 : 1,124,821.22 = 488,601.18 : x
  2. Step 2: Convert to fraction form
    815,103.70/1,124,821.22 = 488,601.18/x
  3. Step 3: Cross multiply
    815,103.70x = 1,124,821.22 × 488,601.18
  4. Step 4: Simplify right side
    815,103.70x = 549,588,975,381.04
  5. Step 5: Solve for x
    x = 549,588,975,381.04/815,103.70
  6. Step 6: Final answer
    x = 674,256.51

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Double scale
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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.