Home / 985,949.82-1,360,587.78-556,218.90

Finding the Fourth Proportional to 985,949.82, 1,360,587.78 and 556,218.90

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Solution

The fourth proportional to 985,949.82, 1,360,587.78 and 556,218.90 is: 767,569.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,949.82 : 1,360,587.78 = 556,218.90 : x
  2. Step 2: Convert to fraction form
    985,949.82/1,360,587.78 = 556,218.90/x
  3. Step 3: Cross multiply
    985,949.82x = 1,360,587.78 × 556,218.90
  4. Step 4: Simplify right side
    985,949.82x = 756,784,638,345.04
  5. Step 5: Solve for x
    x = 756,784,638,345.04/985,949.82
  6. Step 6: Final answer
    x = 767,569.12

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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.