Home / 987,636.98-1,363,049.64-557,944.79

Finding the Fourth Proportional to 987,636.98, 1,363,049.64 and 557,944.79

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Solution

The fourth proportional to 987,636.98, 1,363,049.64 and 557,944.79 is: 770,026.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,636.98 : 1,363,049.64 = 557,944.79 : x
  2. Step 2: Convert to fraction form
    987,636.98/1,363,049.64 = 557,944.79/x
  3. Step 3: Cross multiply
    987,636.98x = 1,363,049.64 × 557,944.79
  4. Step 4: Simplify right side
    987,636.98x = 760,506,445,149.38
  5. Step 5: Solve for x
    x = 760,506,445,149.38/987,636.98
  6. Step 6: Final answer
    x = 770,026.30

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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.