Home / 990,273.45-1,366,581.47-560,636.49

Finding the Fourth Proportional to 990,273.45, 1,366,581.47 and 560,636.49

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Solution

The fourth proportional to 990,273.45, 1,366,581.47 and 560,636.49 is: 773,680.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,273.45 : 1,366,581.47 = 560,636.49 : x
  2. Step 2: Convert to fraction form
    990,273.45/1,366,581.47 = 560,636.49/x
  3. Step 3: Cross multiply
    990,273.45x = 1,366,581.47 × 560,636.49
  4. Step 4: Simplify right side
    990,273.45x = 766,155,438,639.84
  5. Step 5: Solve for x
    x = 766,155,438,639.84/990,273.45
  6. Step 6: Final answer
    x = 773,680.68

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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.