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Finding the Fourth Proportional to 560,261.80, 773,156.10 and 345,315.88

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Solution

The fourth proportional to 560,261.80, 773,156.10 and 345,315.88 is: 476,532.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,261.80 : 773,156.10 = 345,315.88 : x
  2. Step 2: Convert to fraction form
    560,261.80/773,156.10 = 345,315.88/x
  3. Step 3: Cross multiply
    560,261.80x = 773,156.10 × 345,315.88
  4. Step 4: Simplify right side
    560,261.80x = 266,983,079,048.87
  5. Step 5: Solve for x
    x = 266,983,079,048.87/560,261.80
  6. Step 6: Final answer
    x = 476,532.72

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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.