Home / 990,108.87-1,366,352.87-537,399.87

Finding the Fourth Proportional to 990,108.87, 1,366,352.87 and 537,399.87

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Solution

The fourth proportional to 990,108.87, 1,366,352.87 and 537,399.87 is: 741,613.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,108.87 : 1,366,352.87 = 537,399.87 : x
  2. Step 2: Convert to fraction form
    990,108.87/1,366,352.87 = 537,399.87/x
  3. Step 3: Cross multiply
    990,108.87x = 1,366,352.87 × 537,399.87
  4. Step 4: Simplify right side
    990,108.87x = 734,277,854,712.13
  5. Step 5: Solve for x
    x = 734,277,854,712.13/990,108.87
  6. Step 6: Final answer
    x = 741,613.25

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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.