Home / 898,391.28-1,239,771.50-490,489.60

Finding the Fourth Proportional to 898,391.28, 1,239,771.50 and 490,489.60

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Solution

The fourth proportional to 898,391.28, 1,239,771.50 and 490,489.60 is: 676,871.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,391.28 : 1,239,771.50 = 490,489.60 : x
  2. Step 2: Convert to fraction form
    898,391.28/1,239,771.50 = 490,489.60/x
  3. Step 3: Cross multiply
    898,391.28x = 1,239,771.50 × 490,489.60
  4. Step 4: Simplify right side
    898,391.28x = 608,095,027,126.40
  5. Step 5: Solve for x
    x = 608,095,027,126.40/898,391.28
  6. Step 6: Final answer
    x = 676,871.03

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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.