Home / 987,628.47-1,363,038.08-557,936.28

Finding the Fourth Proportional to 987,628.47, 1,363,038.08 and 557,936.28

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Solution

The fourth proportional to 987,628.47, 1,363,038.08 and 557,936.28 is: 770,014.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,628.47 : 1,363,038.08 = 557,936.28 : x
  2. Step 2: Convert to fraction form
    987,628.47/1,363,038.08 = 557,936.28/x
  3. Step 3: Cross multiply
    987,628.47x = 1,363,038.08 × 557,936.28
  4. Step 4: Simplify right side
    987,628.47x = 760,488,393,063.86
  5. Step 5: Solve for x
    x = 760,488,393,063.86/987,628.47
  6. Step 6: Final answer
    x = 770,014.65

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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.