Home / 1,432,386.96-2,148,247.19-421,238.45

Finding the Fourth Proportional to 1,432,386.96, 2,148,247.19 and 421,238.45

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Solution

The fourth proportional to 1,432,386.96, 2,148,247.19 and 421,238.45 is: 631,759.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,386.96 : 2,148,247.19 = 421,238.45 : x
  2. Step 2: Convert to fraction form
    1,432,386.96/2,148,247.19 = 421,238.45/x
  3. Step 3: Cross multiply
    1,432,386.96x = 2,148,247.19 × 421,238.45
  4. Step 4: Simplify right side
    1,432,386.96x = 904,924,303,685.03
  5. Step 5: Solve for x
    x = 904,924,303,685.03/1,432,386.96
  6. Step 6: Final answer
    x = 631,759.66

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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.