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Finding the Fourth Proportional to 1,299,837.50, 1,793,742.20 and 719,045.52

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Solution

The fourth proportional to 1,299,837.50, 1,793,742.20 and 719,045.52 is: 992,264.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,837.50 : 1,793,742.20 = 719,045.52 : x
  2. Step 2: Convert to fraction form
    1,299,837.50/1,793,742.20 = 719,045.52/x
  3. Step 3: Cross multiply
    1,299,837.50x = 1,793,742.20 × 719,045.52
  4. Step 4: Simplify right side
    1,299,837.50x = 1,289,782,292,944.94
  5. Step 5: Solve for x
    x = 1,289,782,292,944.94/1,299,837.50
  6. Step 6: Final answer
    x = 992,264.26

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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.