Home / 898,505.06-1,239,962.56-490,632.80

Finding the Fourth Proportional to 898,505.06, 1,239,962.56 and 490,632.80

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Solution

The fourth proportional to 898,505.06, 1,239,962.56 and 490,632.80 is: 677,087.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,505.06 : 1,239,962.56 = 490,632.80 : x
  2. Step 2: Convert to fraction form
    898,505.06/1,239,962.56 = 490,632.80/x
  3. Step 3: Cross multiply
    898,505.06x = 1,239,962.56 × 490,632.80
  4. Step 4: Simplify right side
    898,505.06x = 608,366,302,707.97
  5. Step 5: Solve for x
    x = 608,366,302,707.97/898,505.06
  6. Step 6: Final answer
    x = 677,087.23

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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.