Home / 898,535.76-1,239,985.38-490,640.46

Finding the Fourth Proportional to 898,535.76, 1,239,985.38 and 490,640.46

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Solution

The fourth proportional to 898,535.76, 1,239,985.38 and 490,640.46 is: 677,087.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,535.76 : 1,239,985.38 = 490,640.46 : x
  2. Step 2: Convert to fraction form
    898,535.76/1,239,985.38 = 490,640.46/x
  3. Step 3: Cross multiply
    898,535.76x = 1,239,985.38 × 490,640.46
  4. Step 4: Simplify right side
    898,535.76x = 608,386,997,236.48
  5. Step 5: Solve for x
    x = 608,386,997,236.48/898,535.76
  6. Step 6: Final answer
    x = 677,087.13

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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.