Home / 1,354,937.16-1,869,678.54-782,161.86

Finding the Fourth Proportional to 1,354,937.16, 1,869,678.54 and 782,161.86

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Solution

The fourth proportional to 1,354,937.16, 1,869,678.54 and 782,161.86 is: 1,079,305.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,937.16 : 1,869,678.54 = 782,161.86 : x
  2. Step 2: Convert to fraction form
    1,354,937.16/1,869,678.54 = 782,161.86/x
  3. Step 3: Cross multiply
    1,354,937.16x = 1,869,678.54 × 782,161.86
  4. Step 4: Simplify right side
    1,354,937.16x = 1,462,391,244,448.48
  5. Step 5: Solve for x
    x = 1,462,391,244,448.48/1,354,937.16
  6. Step 6: Final answer
    x = 1,079,305.59

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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.