Home / 778,888.28-1,074,898.50-439,356.44

Finding the Fourth Proportional to 778,888.28, 1,074,898.50 and 439,356.44

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Solution

The fourth proportional to 778,888.28, 1,074,898.50 and 439,356.44 is: 606,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,888.28 : 1,074,898.50 = 439,356.44 : x
  2. Step 2: Convert to fraction form
    778,888.28/1,074,898.50 = 439,356.44/x
  3. Step 3: Cross multiply
    778,888.28x = 1,074,898.50 × 439,356.44
  4. Step 4: Simplify right side
    778,888.28x = 472,263,578,321.34
  5. Step 5: Solve for x
    x = 472,263,578,321.34/778,888.28
  6. Step 6: Final answer
    x = 606,330.32

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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.