Home / 921,209.36-1,380,765.83-560,584.85

Finding the Fourth Proportional to 921,209.36, 1,380,765.83 and 560,584.85

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Solution

The fourth proportional to 921,209.36, 1,380,765.83 and 560,584.85 is: 840,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,209.36 : 1,380,765.83 = 560,584.85 : x
  2. Step 2: Convert to fraction form
    921,209.36/1,380,765.83 = 560,584.85/x
  3. Step 3: Cross multiply
    921,209.36x = 1,380,765.83 × 560,584.85
  4. Step 4: Simplify right side
    921,209.36x = 774,036,395,988.92
  5. Step 5: Solve for x
    x = 774,036,395,988.92/921,209.36
  6. Step 6: Final answer
    x = 840,239.40

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1.5x scale

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.