Home / 1,097,681.80-1,646,522.70-387,704.20

Finding the Fourth Proportional to 1,097,681.80, 1,646,522.70 and 387,704.20

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Solution

The fourth proportional to 1,097,681.80, 1,646,522.70 and 387,704.20 is: 581,556.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,681.80 : 1,646,522.70 = 387,704.20 : x
  2. Step 2: Convert to fraction form
    1,097,681.80/1,646,522.70 = 387,704.20/x
  3. Step 3: Cross multiply
    1,097,681.80x = 1,646,522.70 × 387,704.20
  4. Step 4: Simplify right side
    1,097,681.80x = 638,363,766,185.34
  5. Step 5: Solve for x
    x = 638,363,766,185.34/1,097,681.80
  6. Step 6: Final answer
    x = 581,556.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.