Home / 1,189,915.20-1,642,102.74-646,050.96

Finding the Fourth Proportional to 1,189,915.20, 1,642,102.74 and 646,050.96

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Solution

The fourth proportional to 1,189,915.20, 1,642,102.74 and 646,050.96 is: 891,561.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,915.20 : 1,642,102.74 = 646,050.96 : x
  2. Step 2: Convert to fraction form
    1,189,915.20/1,642,102.74 = 646,050.96/x
  3. Step 3: Cross multiply
    1,189,915.20x = 1,642,102.74 × 646,050.96
  4. Step 4: Simplify right side
    1,189,915.20x = 1,060,882,051,595.63
  5. Step 5: Solve for x
    x = 1,060,882,051,595.63/1,189,915.20
  6. Step 6: Final answer
    x = 891,561.06

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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.