Home / 768,815.28-1,153,967.04-369,731.52

Finding the Fourth Proportional to 768,815.28, 1,153,967.04 and 369,731.52

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Solution

The fourth proportional to 768,815.28, 1,153,967.04 and 369,731.52 is: 554,955.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,815.28 : 1,153,967.04 = 369,731.52 : x
  2. Step 2: Convert to fraction form
    768,815.28/1,153,967.04 = 369,731.52/x
  3. Step 3: Cross multiply
    768,815.28x = 1,153,967.04 × 369,731.52
  4. Step 4: Simplify right side
    768,815.28x = 426,657,987,729.10
  5. Step 5: Solve for x
    x = 426,657,987,729.10/768,815.28
  6. Step 6: Final answer
    x = 554,955.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.