Home / 1,284,762.13-1,927,144.59-386,203.78

Finding the Fourth Proportional to 1,284,762.13, 1,927,144.59 and 386,203.78

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Solution

The fourth proportional to 1,284,762.13, 1,927,144.59 and 386,203.78 is: 579,306.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,762.13 : 1,927,144.59 = 386,203.78 : x
  2. Step 2: Convert to fraction form
    1,284,762.13/1,927,144.59 = 386,203.78/x
  3. Step 3: Cross multiply
    1,284,762.13x = 1,927,144.59 × 386,203.78
  4. Step 4: Simplify right side
    1,284,762.13x = 744,270,525,264.55
  5. Step 5: Solve for x
    x = 744,270,525,264.55/1,284,762.13
  6. Step 6: Final answer
    x = 579,306.09

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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.