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Finding the Fourth Proportional to 1,295,711.04, 1,788,119.10 and 722,738.82

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Solution

The fourth proportional to 1,295,711.04, 1,788,119.10 and 722,738.82 is: 997,400.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,711.04 : 1,788,119.10 = 722,738.82 : x
  2. Step 2: Convert to fraction form
    1,295,711.04/1,788,119.10 = 722,738.82/x
  3. Step 3: Cross multiply
    1,295,711.04x = 1,788,119.10 × 722,738.82
  4. Step 4: Simplify right side
    1,295,711.04x = 1,292,343,088,353.46
  5. Step 5: Solve for x
    x = 1,292,343,088,353.46/1,295,711.04
  6. Step 6: Final answer
    x = 997,400.69

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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.