Home / 898,388.55-1,239,788.23-490,485.71

Finding the Fourth Proportional to 898,388.55, 1,239,788.23 and 490,485.71

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Solution

The fourth proportional to 898,388.55, 1,239,788.23 and 490,485.71 is: 676,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,388.55 : 1,239,788.23 = 490,485.71 : x
  2. Step 2: Convert to fraction form
    898,388.55/1,239,788.23 = 490,485.71/x
  3. Step 3: Cross multiply
    898,388.55x = 1,239,788.23 × 490,485.71
  4. Step 4: Simplify right side
    898,388.55x = 608,098,412,114.45
  5. Step 5: Solve for x
    x = 608,098,412,114.45/898,388.55
  6. Step 6: Final answer
    x = 676,876.85

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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.