Home / 898,879.73-1,240,445.78-490,981.44

Finding the Fourth Proportional to 898,879.73, 1,240,445.78 and 490,981.44

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Solution

The fourth proportional to 898,879.73, 1,240,445.78 and 490,981.44 is: 677,549.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,879.73 : 1,240,445.78 = 490,981.44 : x
  2. Step 2: Convert to fraction form
    898,879.73/1,240,445.78 = 490,981.44/x
  3. Step 3: Cross multiply
    898,879.73x = 1,240,445.78 × 490,981.44
  4. Step 4: Simplify right side
    898,879.73x = 609,035,859,344.27
  5. Step 5: Solve for x
    x = 609,035,859,344.27/898,879.73
  6. Step 6: Final answer
    x = 677,549.89

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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.