Home / 1,298,323.55-1,791,754.60-782,239.39

Finding the Fourth Proportional to 1,298,323.55, 1,791,754.60 and 782,239.39

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Solution

The fourth proportional to 1,298,323.55, 1,791,754.60 and 782,239.39 is: 1,079,531.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,323.55 : 1,791,754.60 = 782,239.39 : x
  2. Step 2: Convert to fraction form
    1,298,323.55/1,791,754.60 = 782,239.39/x
  3. Step 3: Cross multiply
    1,298,323.55x = 1,791,754.60 × 782,239.39
  4. Step 4: Simplify right side
    1,298,323.55x = 1,401,581,018,330.52
  5. Step 5: Solve for x
    x = 1,401,581,018,330.52/1,298,323.55
  6. Step 6: Final answer
    x = 1,079,531.39

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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.