Home / 1,047,041.28-1,443,191.68-740,721.92

Finding the Fourth Proportional to 1,047,041.28, 1,443,191.68 and 740,721.92

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Solution

The fourth proportional to 1,047,041.28, 1,443,191.68 and 740,721.92 is: 1,020,975.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,041.28 : 1,443,191.68 = 740,721.92 : x
  2. Step 2: Convert to fraction form
    1,047,041.28/1,443,191.68 = 740,721.92/x
  3. Step 3: Cross multiply
    1,047,041.28x = 1,443,191.68 × 740,721.92
  4. Step 4: Simplify right side
    1,047,041.28x = 1,069,003,712,137.63
  5. Step 5: Solve for x
    x = 1,069,003,712,137.63/1,047,041.28
  6. Step 6: Final answer
    x = 1,020,975.71

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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.