Home / 666,275.97-919,460.80-360,352.36

Finding the Fourth Proportional to 666,275.97, 919,460.80 and 360,352.36

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Solution

The fourth proportional to 666,275.97, 919,460.80 and 360,352.36 is: 497,286.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,275.97 : 919,460.80 = 360,352.36 : x
  2. Step 2: Convert to fraction form
    666,275.97/919,460.80 = 360,352.36/x
  3. Step 3: Cross multiply
    666,275.97x = 919,460.80 × 360,352.36
  4. Step 4: Simplify right side
    666,275.97x = 331,329,869,207.49
  5. Step 5: Solve for x
    x = 331,329,869,207.49/666,275.97
  6. Step 6: Final answer
    x = 497,286.24

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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.