Home / 852,243.20-1,276,809.60-519,430.40

Finding the Fourth Proportional to 852,243.20, 1,276,809.60 and 519,430.40

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Solution

The fourth proportional to 852,243.20, 1,276,809.60 and 519,430.40 is: 778,197.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,243.20 : 1,276,809.60 = 519,430.40 : x
  2. Step 2: Convert to fraction form
    852,243.20/1,276,809.60 = 519,430.40/x
  3. Step 3: Cross multiply
    852,243.20x = 1,276,809.60 × 519,430.40
  4. Step 4: Simplify right side
    852,243.20x = 663,213,721,251.84
  5. Step 5: Solve for x
    x = 663,213,721,251.84/852,243.20
  6. Step 6: Final answer
    x = 778,197.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.