Home / 1,215,543.40-1,823,315.10-1,145,559.40

Finding the Fourth Proportional to 1,215,543.40, 1,823,315.10 and 1,145,559.40

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Solution

The fourth proportional to 1,215,543.40, 1,823,315.10 and 1,145,559.40 is: 1,718,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,543.40 : 1,823,315.10 = 1,145,559.40 : x
  2. Step 2: Convert to fraction form
    1,215,543.40/1,823,315.10 = 1,145,559.40/x
  3. Step 3: Cross multiply
    1,215,543.40x = 1,823,315.10 × 1,145,559.40
  4. Step 4: Simplify right side
    1,215,543.40x = 2,088,715,751,966.94
  5. Step 5: Solve for x
    x = 2,088,715,751,966.94/1,215,543.40
  6. Step 6: Final answer
    x = 1,718,339.10

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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.