Home / 990,108.94-1,366,313.78-537,390.22

Finding the Fourth Proportional to 990,108.94, 1,366,313.78 and 537,390.22

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Solution

The fourth proportional to 990,108.94, 1,366,313.78 and 537,390.22 is: 741,578.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,108.94 : 1,366,313.78 = 537,390.22 : x
  2. Step 2: Convert to fraction form
    990,108.94/1,366,313.78 = 537,390.22/x
  3. Step 3: Cross multiply
    990,108.94x = 1,366,313.78 × 537,390.22
  4. Step 4: Simplify right side
    990,108.94x = 734,243,662,823.23
  5. Step 5: Solve for x
    x = 734,243,662,823.23/990,108.94
  6. Step 6: Final answer
    x = 741,578.66

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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.