Home / 987,638.98-1,363,052.40-557,946.78

Finding the Fourth Proportional to 987,638.98, 1,363,052.40 and 557,946.78

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Solution

The fourth proportional to 987,638.98, 1,363,052.40 and 557,946.78 is: 770,029.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,638.98 : 1,363,052.40 = 557,946.78 : x
  2. Step 2: Convert to fraction form
    987,638.98/1,363,052.40 = 557,946.78/x
  3. Step 3: Cross multiply
    987,638.98x = 1,363,052.40 × 557,946.78
  4. Step 4: Simplify right side
    987,638.98x = 760,510,697,551.27
  5. Step 5: Solve for x
    x = 760,510,697,551.27/987,638.98
  6. Step 6: Final answer
    x = 770,029.04

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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.