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Finding the Fourth Proportional to 555,997.65, 767,315.75 and 314,282.20

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Solution

The fourth proportional to 555,997.65, 767,315.75 and 314,282.20 is: 433,731.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,997.65 : 767,315.75 = 314,282.20 : x
  2. Step 2: Convert to fraction form
    555,997.65/767,315.75 = 314,282.20/x
  3. Step 3: Cross multiply
    555,997.65x = 767,315.75 × 314,282.20
  4. Step 4: Simplify right side
    555,997.65x = 241,153,680,433.24
  5. Step 5: Solve for x
    x = 241,153,680,433.24/555,997.65
  6. Step 6: Final answer
    x = 433,731.48

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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.