Home / 1,385,655.90-2,079,175.05-787,076.70

Finding the Fourth Proportional to 1,385,655.90, 2,079,175.05 and 787,076.70

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Solution

The fourth proportional to 1,385,655.90, 2,079,175.05 and 787,076.70 is: 1,181,007.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,655.90 : 2,079,175.05 = 787,076.70 : x
  2. Step 2: Convert to fraction form
    1,385,655.90/2,079,175.05 = 787,076.70/x
  3. Step 3: Cross multiply
    1,385,655.90x = 2,079,175.05 × 787,076.70
  4. Step 4: Simplify right side
    1,385,655.90x = 1,636,470,237,076.34
  5. Step 5: Solve for x
    x = 1,636,470,237,076.34/1,385,655.90
  6. Step 6: Final answer
    x = 1,181,007.66

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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.