Home / 898,731.93-1,240,243.76-490,833.89

Finding the Fourth Proportional to 898,731.93, 1,240,243.76 and 490,833.89

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Solution

The fourth proportional to 898,731.93, 1,240,243.76 and 490,833.89 is: 677,347.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,731.93 : 1,240,243.76 = 490,833.89 : x
  2. Step 2: Convert to fraction form
    898,731.93/1,240,243.76 = 490,833.89/x
  3. Step 3: Cross multiply
    898,731.93x = 1,240,243.76 × 490,833.89
  4. Step 4: Simplify right side
    898,731.93x = 608,753,660,613.64
  5. Step 5: Solve for x
    x = 608,753,660,613.64/898,731.93
  6. Step 6: Final answer
    x = 677,347.32

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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.