Home / 749,282.70-1,120,643.55-669,894.60

Finding the Fourth Proportional to 749,282.70, 1,120,643.55 and 669,894.60

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Solution

The fourth proportional to 749,282.70, 1,120,643.55 and 669,894.60 is: 1,001,908.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,282.70 : 1,120,643.55 = 669,894.60 : x
  2. Step 2: Convert to fraction form
    749,282.70/1,120,643.55 = 669,894.60/x
  3. Step 3: Cross multiply
    749,282.70x = 1,120,643.55 × 669,894.60
  4. Step 4: Simplify right side
    749,282.70x = 750,713,062,669.83
  5. Step 5: Solve for x
    x = 750,713,062,669.83/749,282.70
  6. Step 6: Final answer
    x = 1,001,908.98

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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.