Home / 778,227.63-1,073,970.53-438,695.88

Finding the Fourth Proportional to 778,227.63, 1,073,970.53 and 438,695.88

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Solution

The fourth proportional to 778,227.63, 1,073,970.53 and 438,695.88 is: 605,409.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,227.63 : 1,073,970.53 = 438,695.88 : x
  2. Step 2: Convert to fraction form
    778,227.63/1,073,970.53 = 438,695.88/x
  3. Step 3: Cross multiply
    778,227.63x = 1,073,970.53 × 438,695.88
  4. Step 4: Simplify right side
    778,227.63x = 471,146,446,752.42
  5. Step 5: Solve for x
    x = 471,146,446,752.42/778,227.63
  6. Step 6: Final answer
    x = 605,409.56

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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.