Home / 770,534.20-1,154,246.10-437,721.40

Finding the Fourth Proportional to 770,534.20, 1,154,246.10 and 437,721.40

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Solution

The fourth proportional to 770,534.20, 1,154,246.10 and 437,721.40 is: 655,698.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,534.20 : 1,154,246.10 = 437,721.40 : x
  2. Step 2: Convert to fraction form
    770,534.20/1,154,246.10 = 437,721.40/x
  3. Step 3: Cross multiply
    770,534.20x = 1,154,246.10 × 437,721.40
  4. Step 4: Simplify right side
    770,534.20x = 505,238,218,836.54
  5. Step 5: Solve for x
    x = 505,238,218,836.54/770,534.20
  6. Step 6: Final answer
    x = 655,698.63

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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.