Home / 645,872.20-967,886.70-476,067.40

Finding the Fourth Proportional to 645,872.20, 967,886.70 and 476,067.40

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Solution

The fourth proportional to 645,872.20, 967,886.70 and 476,067.40 is: 713,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,872.20 : 967,886.70 = 476,067.40 : x
  2. Step 2: Convert to fraction form
    645,872.20/967,886.70 = 476,067.40/x
  3. Step 3: Cross multiply
    645,872.20x = 967,886.70 × 476,067.40
  4. Step 4: Simplify right side
    645,872.20x = 460,779,304,763.58
  5. Step 5: Solve for x
    x = 460,779,304,763.58/645,872.20
  6. Step 6: Final answer
    x = 713,421.80

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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.