Home / 1,427,315.11-1,969,513.35-815,507.50

Finding the Fourth Proportional to 1,427,315.11, 1,969,513.35 and 815,507.50

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Solution

The fourth proportional to 1,427,315.11, 1,969,513.35 and 815,507.50 is: 1,125,296.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,315.11 : 1,969,513.35 = 815,507.50 : x
  2. Step 2: Convert to fraction form
    1,427,315.11/1,969,513.35 = 815,507.50/x
  3. Step 3: Cross multiply
    1,427,315.11x = 1,969,513.35 × 815,507.50
  4. Step 4: Simplify right side
    1,427,315.11x = 1,606,152,908,275.13
  5. Step 5: Solve for x
    x = 1,606,152,908,275.13/1,427,315.11
  6. Step 6: Final answer
    x = 1,125,296.65

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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.