Home / 985,701.57-1,360,331.64-555,972.45

Finding the Fourth Proportional to 985,701.57, 1,360,331.64 and 555,972.45

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Solution

The fourth proportional to 985,701.57, 1,360,331.64 and 555,972.45 is: 767,277.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,701.57 : 1,360,331.64 = 555,972.45 : x
  2. Step 2: Convert to fraction form
    985,701.57/1,360,331.64 = 555,972.45/x
  3. Step 3: Cross multiply
    985,701.57x = 1,360,331.64 × 555,972.45
  4. Step 4: Simplify right side
    985,701.57x = 756,306,914,703.32
  5. Step 5: Solve for x
    x = 756,306,914,703.32/985,701.57
  6. Step 6: Final answer
    x = 767,277.78

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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.