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Finding the Fourth Proportional to 511,439.87, 767,159.81 and 510,701.76

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Solution

The fourth proportional to 511,439.87, 767,159.81 and 510,701.76 is: 766,052.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,439.87 : 767,159.81 = 510,701.76 : x
  2. Step 2: Convert to fraction form
    511,439.87/767,159.81 = 510,701.76/x
  3. Step 3: Cross multiply
    511,439.87x = 767,159.81 × 510,701.76
  4. Step 4: Simplify right side
    511,439.87x = 391,789,865,168.27
  5. Step 5: Solve for x
    x = 391,789,865,168.27/511,439.87
  6. Step 6: Final answer
    x = 766,052.64

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1.5x scale

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.