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Finding the Fourth Proportional to 382,043.70, 573,065.55 and 340,709.40

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Solution

The fourth proportional to 382,043.70, 573,065.55 and 340,709.40 is: 511,064.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,043.70 : 573,065.55 = 340,709.40 : x
  2. Step 2: Convert to fraction form
    382,043.70/573,065.55 = 340,709.40/x
  3. Step 3: Cross multiply
    382,043.70x = 573,065.55 × 340,709.40
  4. Step 4: Simplify right side
    382,043.70x = 195,248,819,701.17
  5. Step 5: Solve for x
    x = 195,248,819,701.17/382,043.70
  6. Step 6: Final answer
    x = 511,064.10

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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.