Home / 778,750.52-1,074,472.61-456,287.36

Finding the Fourth Proportional to 778,750.52, 1,074,472.61 and 456,287.36

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Solution

The fourth proportional to 778,750.52, 1,074,472.61 and 456,287.36 is: 629,557.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,750.52 : 1,074,472.61 = 456,287.36 : x
  2. Step 2: Convert to fraction form
    778,750.52/1,074,472.61 = 456,287.36/x
  3. Step 3: Cross multiply
    778,750.52x = 1,074,472.61 × 456,287.36
  4. Step 4: Simplify right side
    778,750.52x = 490,268,262,955.41
  5. Step 5: Solve for x
    x = 490,268,262,955.41/778,750.52
  6. Step 6: Final answer
    x = 629,557.55

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1.5x scale

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.