Home / 869,345.20-1,304,665.80-448,404.40

Finding the Fourth Proportional to 869,345.20, 1,304,665.80 and 448,404.40

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Solution

The fourth proportional to 869,345.20, 1,304,665.80 and 448,404.40 is: 672,940.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,345.20 : 1,304,665.80 = 448,404.40 : x
  2. Step 2: Convert to fraction form
    869,345.20/1,304,665.80 = 448,404.40/x
  3. Step 3: Cross multiply
    869,345.20x = 1,304,665.80 × 448,404.40
  4. Step 4: Simplify right side
    869,345.20x = 585,017,885,249.52
  5. Step 5: Solve for x
    x = 585,017,885,249.52/869,345.20
  6. Step 6: Final answer
    x = 672,940.84

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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.