Home / 991,905.16-1,487,844.43-272,246.01

Finding the Fourth Proportional to 991,905.16, 1,487,844.43 and 272,246.01

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Solution

The fourth proportional to 991,905.16, 1,487,844.43 and 272,246.01 is: 408,365.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,905.16 : 1,487,844.43 = 272,246.01 : x
  2. Step 2: Convert to fraction form
    991,905.16/1,487,844.43 = 272,246.01/x
  3. Step 3: Cross multiply
    991,905.16x = 1,487,844.43 × 272,246.01
  4. Step 4: Simplify right side
    991,905.16x = 405,059,708,389.03
  5. Step 5: Solve for x
    x = 405,059,708,389.03/991,905.16
  6. Step 6: Final answer
    x = 408,365.36

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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.