Home / 778,073.56-1,074,050.76-668,745.16

Finding the Fourth Proportional to 778,073.56, 1,074,050.76 and 668,745.16

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Solution

The fourth proportional to 778,073.56, 1,074,050.76 and 668,745.16 is: 923,134.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,073.56 : 1,074,050.76 = 668,745.16 : x
  2. Step 2: Convert to fraction form
    778,073.56/1,074,050.76 = 668,745.16/x
  3. Step 3: Cross multiply
    778,073.56x = 1,074,050.76 × 668,745.16
  4. Step 4: Simplify right side
    778,073.56x = 718,266,247,344.32
  5. Step 5: Solve for x
    x = 718,266,247,344.32/778,073.56
  6. Step 6: Final answer
    x = 923,134.12

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1.5x scale

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.