Home / 1,258,642.80-1,887,964.20-360,138.15

Finding the Fourth Proportional to 1,258,642.80, 1,887,964.20 and 360,138.15

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Solution

The fourth proportional to 1,258,642.80, 1,887,964.20 and 360,138.15 is: 540,207.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,642.80 : 1,887,964.20 = 360,138.15 : x
  2. Step 2: Convert to fraction form
    1,258,642.80/1,887,964.20 = 360,138.15/x
  3. Step 3: Cross multiply
    1,258,642.80x = 1,887,964.20 × 360,138.15
  4. Step 4: Simplify right side
    1,258,642.80x = 679,927,934,254.23
  5. Step 5: Solve for x
    x = 679,927,934,254.23/1,258,642.80
  6. Step 6: Final answer
    x = 540,207.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.