Home / 898,010.30-1,347,015.45-815,341.70

Finding the Fourth Proportional to 898,010.30, 1,347,015.45 and 815,341.70

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Solution

The fourth proportional to 898,010.30, 1,347,015.45 and 815,341.70 is: 1,223,012.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,010.30 : 1,347,015.45 = 815,341.70 : x
  2. Step 2: Convert to fraction form
    898,010.30/1,347,015.45 = 815,341.70/x
  3. Step 3: Cross multiply
    898,010.30x = 1,347,015.45 × 815,341.70
  4. Step 4: Simplify right side
    898,010.30x = 1,098,277,866,929.26
  5. Step 5: Solve for x
    x = 1,098,277,866,929.26/898,010.30
  6. Step 6: Final answer
    x = 1,223,012.55

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Double scale
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Similar ratio
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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.