Home / 918,323.86-1,373,456.97-817,830.58

Finding the Fourth Proportional to 918,323.86, 1,373,456.97 and 817,830.58

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Solution

The fourth proportional to 918,323.86, 1,373,456.97 and 817,830.58 is: 1,223,157.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,323.86 : 1,373,456.97 = 817,830.58 : x
  2. Step 2: Convert to fraction form
    918,323.86/1,373,456.97 = 817,830.58/x
  3. Step 3: Cross multiply
    918,323.86x = 1,373,456.97 × 817,830.58
  4. Step 4: Simplify right side
    918,323.86x = 1,123,255,110,380.14
  5. Step 5: Solve for x
    x = 1,123,255,110,380.14/918,323.86
  6. Step 6: Final answer
    x = 1,223,157.93

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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.