Home / 990,131.44-1,366,344.80-537,412.72

Finding the Fourth Proportional to 990,131.44, 1,366,344.80 and 537,412.72

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Solution

The fourth proportional to 990,131.44, 1,366,344.80 and 537,412.72 is: 741,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,131.44 : 1,366,344.80 = 537,412.72 : x
  2. Step 2: Convert to fraction form
    990,131.44/1,366,344.80 = 537,412.72/x
  3. Step 3: Cross multiply
    990,131.44x = 1,366,344.80 × 537,412.72
  4. Step 4: Simplify right side
    990,131.44x = 734,291,075,425.86
  5. Step 5: Solve for x
    x = 734,291,075,425.86/990,131.44
  6. Step 6: Final answer
    x = 741,609.70

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Double scale
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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.