Home / 898,768.20-1,240,293.46-490,870.23

Finding the Fourth Proportional to 898,768.20, 1,240,293.46 and 490,870.23

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Solution

The fourth proportional to 898,768.20, 1,240,293.46 and 490,870.23 is: 677,397.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,768.20 : 1,240,293.46 = 490,870.23 : x
  2. Step 2: Convert to fraction form
    898,768.20/1,240,293.46 = 490,870.23/x
  3. Step 3: Cross multiply
    898,768.20x = 1,240,293.46 × 490,870.23
  4. Step 4: Simplify right side
    898,768.20x = 608,823,135,977.70
  5. Step 5: Solve for x
    x = 608,823,135,977.70/898,768.20
  6. Step 6: Final answer
    x = 677,397.28

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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.