Home / 898,502.78-1,239,927.54-490,604.38

Finding the Fourth Proportional to 898,502.78, 1,239,927.54 and 490,604.38

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Solution

The fourth proportional to 898,502.78, 1,239,927.54 and 490,604.38 is: 677,030.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,502.78 : 1,239,927.54 = 490,604.38 : x
  2. Step 2: Convert to fraction form
    898,502.78/1,239,927.54 = 490,604.38/x
  3. Step 3: Cross multiply
    898,502.78x = 1,239,927.54 × 490,604.38
  4. Step 4: Simplify right side
    898,502.78x = 608,313,882,006.63
  5. Step 5: Solve for x
    x = 608,313,882,006.63/898,502.78
  6. Step 6: Final answer
    x = 677,030.61

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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.