Home / 1,432,239.57-1,976,445.36-787,657.77

Finding the Fourth Proportional to 1,432,239.57, 1,976,445.36 and 787,657.77

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Solution

The fourth proportional to 1,432,239.57, 1,976,445.36 and 787,657.77 is: 1,086,942.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,239.57 : 1,976,445.36 = 787,657.77 : x
  2. Step 2: Convert to fraction form
    1,432,239.57/1,976,445.36 = 787,657.77/x
  3. Step 3: Cross multiply
    1,432,239.57x = 1,976,445.36 × 787,657.77
  4. Step 4: Simplify right side
    1,432,239.57x = 1,556,762,544,784.45
  5. Step 5: Solve for x
    x = 1,556,762,544,784.45/1,432,239.57
  6. Step 6: Final answer
    x = 1,086,942.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.