Home / 898,279.56-1,239,607.26-490,389.48

Finding the Fourth Proportional to 898,279.56, 1,239,607.26 and 490,389.48

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Solution

The fourth proportional to 898,279.56, 1,239,607.26 and 490,389.48 is: 676,727.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,279.56 : 1,239,607.26 = 490,389.48 : x
  2. Step 2: Convert to fraction form
    898,279.56/1,239,607.26 = 490,389.48/x
  3. Step 3: Cross multiply
    898,279.56x = 1,239,607.26 × 490,389.48
  4. Step 4: Simplify right side
    898,279.56x = 607,890,359,635.63
  5. Step 5: Solve for x
    x = 607,890,359,635.63/898,279.56
  6. Step 6: Final answer
    x = 676,727.36

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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.