Home / 1,387,273.50-2,080,910.34-390,001.50

Finding the Fourth Proportional to 1,387,273.50, 2,080,910.34 and 390,001.50

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Solution

The fourth proportional to 1,387,273.50, 2,080,910.34 and 390,001.50 is: 585,002.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,273.50 : 2,080,910.34 = 390,001.50 : x
  2. Step 2: Convert to fraction form
    1,387,273.50/2,080,910.34 = 390,001.50/x
  3. Step 3: Cross multiply
    1,387,273.50x = 2,080,910.34 × 390,001.50
  4. Step 4: Simplify right side
    1,387,273.50x = 811,558,153,965.51
  5. Step 5: Solve for x
    x = 811,558,153,965.51/1,387,273.50
  6. Step 6: Final answer
    x = 585,002.28

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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.