Home / 1,294,859.60-1,788,034.54-812,254.30

Finding the Fourth Proportional to 1,294,859.60, 1,788,034.54 and 812,254.30

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Solution

The fourth proportional to 1,294,859.60, 1,788,034.54 and 812,254.30 is: 1,121,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,859.60 : 1,788,034.54 = 812,254.30 : x
  2. Step 2: Convert to fraction form
    1,294,859.60/1,788,034.54 = 812,254.30/x
  3. Step 3: Cross multiply
    1,294,859.60x = 1,788,034.54 × 812,254.30
  4. Step 4: Simplify right side
    1,294,859.60x = 1,452,338,743,663.52
  5. Step 5: Solve for x
    x = 1,452,338,743,663.52/1,294,859.60
  6. Step 6: Final answer
    x = 1,121,618.70

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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.