Home / 985,672.80-1,360,248.56-555,870.56

Finding the Fourth Proportional to 985,672.80, 1,360,248.56 and 555,870.56

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Solution

The fourth proportional to 985,672.80, 1,360,248.56 and 555,870.56 is: 767,112.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,672.80 : 1,360,248.56 = 555,870.56 : x
  2. Step 2: Convert to fraction form
    985,672.80/1,360,248.56 = 555,870.56/x
  3. Step 3: Cross multiply
    985,672.80x = 1,360,248.56 × 555,870.56
  4. Step 4: Simplify right side
    985,672.80x = 756,122,128,786.39
  5. Step 5: Solve for x
    x = 756,122,128,786.39/985,672.80
  6. Step 6: Final answer
    x = 767,112.71

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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.