Home / 1,242,315.20-1,865,441.10-907,704.20

Finding the Fourth Proportional to 1,242,315.20, 1,865,441.10 and 907,704.20

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Solution

The fourth proportional to 1,242,315.20, 1,865,441.10 and 907,704.20 is: 1,362,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,315.20 : 1,865,441.10 = 907,704.20 : x
  2. Step 2: Convert to fraction form
    1,242,315.20/1,865,441.10 = 907,704.20/x
  3. Step 3: Cross multiply
    1,242,315.20x = 1,865,441.10 × 907,704.20
  4. Step 4: Simplify right side
    1,242,315.20x = 1,693,268,721,322.62
  5. Step 5: Solve for x
    x = 1,693,268,721,322.62/1,242,315.20
  6. Step 6: Final answer
    x = 1,362,994.45

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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.