Home / 990,337.72-1,366,698.81-560,608.96

Finding the Fourth Proportional to 990,337.72, 1,366,698.81 and 560,608.96

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Solution

The fourth proportional to 990,337.72, 1,366,698.81 and 560,608.96 is: 773,658.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,337.72 : 1,366,698.81 = 560,608.96 : x
  2. Step 2: Convert to fraction form
    990,337.72/1,366,698.81 = 560,608.96/x
  3. Step 3: Cross multiply
    990,337.72x = 1,366,698.81 × 560,608.96
  4. Step 4: Simplify right side
    990,337.72x = 766,183,598,507.34
  5. Step 5: Solve for x
    x = 766,183,598,507.34/990,337.72
  6. Step 6: Final answer
    x = 773,658.91

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1.5x scale

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.