Home / 768,118.01-1,060,002.05-428,586.26

Finding the Fourth Proportional to 768,118.01, 1,060,002.05 and 428,586.26

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Solution

The fourth proportional to 768,118.01, 1,060,002.05 and 428,586.26 is: 591,448.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,118.01 : 1,060,002.05 = 428,586.26 : x
  2. Step 2: Convert to fraction form
    768,118.01/1,060,002.05 = 428,586.26/x
  3. Step 3: Cross multiply
    768,118.01x = 1,060,002.05 × 428,586.26
  4. Step 4: Simplify right side
    768,118.01x = 454,302,306,758.89
  5. Step 5: Solve for x
    x = 454,302,306,758.89/768,118.01
  6. Step 6: Final answer
    x = 591,448.58

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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.