Home / 1,111,048.88-1,666,229.36-400,987.04

Finding the Fourth Proportional to 1,111,048.88, 1,666,229.36 and 400,987.04

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Solution

The fourth proportional to 1,111,048.88, 1,666,229.36 and 400,987.04 is: 601,356.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,048.88 : 1,666,229.36 = 400,987.04 : x
  2. Step 2: Convert to fraction form
    1,111,048.88/1,666,229.36 = 400,987.04/x
  3. Step 3: Cross multiply
    1,111,048.88x = 1,666,229.36 × 400,987.04
  4. Step 4: Simplify right side
    1,111,048.88x = 668,136,379,027.49
  5. Step 5: Solve for x
    x = 668,136,379,027.49/1,111,048.88
  6. Step 6: Final answer
    x = 601,356.42

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Double scale
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1.5x scale

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.