Home / 815,100.70-1,124,817.08-488,598.18

Finding the Fourth Proportional to 815,100.70, 1,124,817.08 and 488,598.18

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Solution

The fourth proportional to 815,100.70, 1,124,817.08 and 488,598.18 is: 674,252.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,100.70 : 1,124,817.08 = 488,598.18 : x
  2. Step 2: Convert to fraction form
    815,100.70/1,124,817.08 = 488,598.18/x
  3. Step 3: Cross multiply
    815,100.70x = 1,124,817.08 × 488,598.18
  4. Step 4: Simplify right side
    815,100.70x = 549,583,578,120.91
  5. Step 5: Solve for x
    x = 549,583,578,120.91/815,100.70
  6. Step 6: Final answer
    x = 674,252.37

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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.