Home / 1,298,210.09-1,791,598.50-782,126.46

Finding the Fourth Proportional to 1,298,210.09, 1,791,598.50 and 782,126.46

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Solution

The fourth proportional to 1,298,210.09, 1,791,598.50 and 782,126.46 is: 1,079,375.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,210.09 : 1,791,598.50 = 782,126.46 : x
  2. Step 2: Convert to fraction form
    1,298,210.09/1,791,598.50 = 782,126.46/x
  3. Step 3: Cross multiply
    1,298,210.09x = 1,791,598.50 × 782,126.46
  4. Step 4: Simplify right side
    1,298,210.09x = 1,401,256,592,546.31
  5. Step 5: Solve for x
    x = 1,401,256,592,546.31/1,298,210.09
  6. Step 6: Final answer
    x = 1,079,375.83

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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.