Home / 990,106.73-1,366,113.10-560,386.86

Finding the Fourth Proportional to 990,106.73, 1,366,113.10 and 560,386.86

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Solution

The fourth proportional to 990,106.73, 1,366,113.10 and 560,386.86 is: 773,201.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,106.73 : 1,366,113.10 = 560,386.86 : x
  2. Step 2: Convert to fraction form
    990,106.73/1,366,113.10 = 560,386.86/x
  3. Step 3: Cross multiply
    990,106.73x = 1,366,113.10 × 560,386.86
  4. Step 4: Simplify right side
    990,106.73x = 765,551,832,500.68
  5. Step 5: Solve for x
    x = 765,551,832,500.68/990,106.73
  6. Step 6: Final answer
    x = 773,201.32

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Double scale
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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.