Home / 1,312,686.16-1,969,029.25-315,414.16

Finding the Fourth Proportional to 1,312,686.16, 1,969,029.25 and 315,414.16

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Solution

The fourth proportional to 1,312,686.16, 1,969,029.25 and 315,414.16 is: 473,121.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,686.16 : 1,969,029.25 = 315,414.16 : x
  2. Step 2: Convert to fraction form
    1,312,686.16/1,969,029.25 = 315,414.16/x
  3. Step 3: Cross multiply
    1,312,686.16x = 1,969,029.25 × 315,414.16
  4. Step 4: Simplify right side
    1,312,686.16x = 621,059,706,904.18
  5. Step 5: Solve for x
    x = 621,059,706,904.18/1,312,686.16
  6. Step 6: Final answer
    x = 473,121.24

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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.