Home / 695,036.40-1,044,781.80-645,730.80

Finding the Fourth Proportional to 695,036.40, 1,044,781.80 and 645,730.80

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Solution

The fourth proportional to 695,036.40, 1,044,781.80 and 645,730.80 is: 970,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,036.40 : 1,044,781.80 = 645,730.80 : x
  2. Step 2: Convert to fraction form
    695,036.40/1,044,781.80 = 645,730.80/x
  3. Step 3: Cross multiply
    695,036.40x = 1,044,781.80 × 645,730.80
  4. Step 4: Simplify right side
    695,036.40x = 674,647,787,539.44
  5. Step 5: Solve for x
    x = 674,647,787,539.44/695,036.40
  6. Step 6: Final answer
    x = 970,665.40

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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.