Home / 987,637.98-1,363,051.02-557,945.78

Finding the Fourth Proportional to 987,637.98, 1,363,051.02 and 557,945.78

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Solution

The fourth proportional to 987,637.98, 1,363,051.02 and 557,945.78 is: 770,027.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,637.98 : 1,363,051.02 = 557,945.78 : x
  2. Step 2: Convert to fraction form
    987,637.98/1,363,051.02 = 557,945.78/x
  3. Step 3: Cross multiply
    987,637.98x = 1,363,051.02 × 557,945.78
  4. Step 4: Simplify right side
    987,637.98x = 760,508,564,533.70
  5. Step 5: Solve for x
    x = 760,508,564,533.70/987,637.98
  6. Step 6: Final answer
    x = 770,027.66

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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.