Home / 768,939.20-1,145,514.48-734,395.92

Finding the Fourth Proportional to 768,939.20, 1,145,514.48 and 734,395.92

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Solution

The fourth proportional to 768,939.20, 1,145,514.48 and 734,395.92 is: 1,094,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,939.20 : 1,145,514.48 = 734,395.92 : x
  2. Step 2: Convert to fraction form
    768,939.20/1,145,514.48 = 734,395.92/x
  3. Step 3: Cross multiply
    768,939.20x = 1,145,514.48 × 734,395.92
  4. Step 4: Simplify right side
    768,939.20x = 841,261,160,412.92
  5. Step 5: Solve for x
    x = 841,261,160,412.92/768,939.20
  6. Step 6: Final answer
    x = 1,094,054.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.