Home / 778,075.56-1,074,053.52-668,747.16

Finding the Fourth Proportional to 778,075.56, 1,074,053.52 and 668,747.16

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Solution

The fourth proportional to 778,075.56, 1,074,053.52 and 668,747.16 is: 923,136.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,075.56 : 1,074,053.52 = 668,747.16 : x
  2. Step 2: Convert to fraction form
    778,075.56/1,074,053.52 = 668,747.16/x
  3. Step 3: Cross multiply
    778,075.56x = 1,074,053.52 × 668,747.16
  4. Step 4: Simplify right side
    778,075.56x = 718,270,241,188.00
  5. Step 5: Solve for x
    x = 718,270,241,188.00/778,075.56
  6. Step 6: Final answer
    x = 923,136.88

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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.