Home / 987,918.47-1,363,176.92-558,041.75

Finding the Fourth Proportional to 987,918.47, 1,363,176.92 and 558,041.75

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Solution

The fourth proportional to 987,918.47, 1,363,176.92 and 558,041.75 is: 770,012.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,918.47 : 1,363,176.92 = 558,041.75 : x
  2. Step 2: Convert to fraction form
    987,918.47/1,363,176.92 = 558,041.75/x
  3. Step 3: Cross multiply
    987,918.47x = 1,363,176.92 × 558,041.75
  4. Step 4: Simplify right side
    987,918.47x = 760,709,639,785.92
  5. Step 5: Solve for x
    x = 760,709,639,785.92/987,918.47
  6. Step 6: Final answer
    x = 770,012.57

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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.