Home / 778,955.70-1,074,963.24-439,445.82

Finding the Fourth Proportional to 778,955.70, 1,074,963.24 and 439,445.82

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Solution

The fourth proportional to 778,955.70, 1,074,963.24 and 439,445.82 is: 606,437.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,955.70 : 1,074,963.24 = 439,445.82 : x
  2. Step 2: Convert to fraction form
    778,955.70/1,074,963.24 = 439,445.82/x
  3. Step 3: Cross multiply
    778,955.70x = 1,074,963.24 × 439,445.82
  4. Step 4: Simplify right side
    778,955.70x = 472,388,102,471.66
  5. Step 5: Solve for x
    x = 472,388,102,471.66/778,955.70
  6. Step 6: Final answer
    x = 606,437.70

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Double scale
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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.