Home / 815,100.72-1,124,817.08-488,598.17

Finding the Fourth Proportional to 815,100.72, 1,124,817.08 and 488,598.17

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Solution

The fourth proportional to 815,100.72, 1,124,817.08 and 488,598.17 is: 674,252.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,100.72 : 1,124,817.08 = 488,598.17 : x
  2. Step 2: Convert to fraction form
    815,100.72/1,124,817.08 = 488,598.17/x
  3. Step 3: Cross multiply
    815,100.72x = 1,124,817.08 × 488,598.17
  4. Step 4: Simplify right side
    815,100.72x = 549,583,570,906.28
  5. Step 5: Solve for x
    x = 549,583,570,906.28/815,100.72
  6. Step 6: Final answer
    x = 674,252.34

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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.