Home / 1,209,999.24-1,669,772.70-666,114.20

Finding the Fourth Proportional to 1,209,999.24, 1,669,772.70 and 666,114.20

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Solution

The fourth proportional to 1,209,999.24, 1,669,772.70 and 666,114.20 is: 919,223.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,999.24 : 1,669,772.70 = 666,114.20 : x
  2. Step 2: Convert to fraction form
    1,209,999.24/1,669,772.70 = 666,114.20/x
  3. Step 3: Cross multiply
    1,209,999.24x = 1,669,772.70 × 666,114.20
  4. Step 4: Simplify right side
    1,209,999.24x = 1,112,259,306,242.34
  5. Step 5: Solve for x
    x = 1,112,259,306,242.34/1,209,999.24
  6. Step 6: Final answer
    x = 919,223.14

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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.