Home / 1,387,837.74-1,915,744.59-904,520.46

Finding the Fourth Proportional to 1,387,837.74, 1,915,744.59 and 904,520.46

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Solution

The fourth proportional to 1,387,837.74, 1,915,744.59 and 904,520.46 is: 1,248,582.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,837.74 : 1,915,744.59 = 904,520.46 : x
  2. Step 2: Convert to fraction form
    1,387,837.74/1,915,744.59 = 904,520.46/x
  3. Step 3: Cross multiply
    1,387,837.74x = 1,915,744.59 × 904,520.46
  4. Step 4: Simplify right side
    1,387,837.74x = 1,732,830,177,789.31
  5. Step 5: Solve for x
    x = 1,732,830,177,789.31/1,387,837.74
  6. Step 6: Final answer
    x = 1,248,582.69

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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.