Home / 990,107.94-1,366,312.40-537,389.22

Finding the Fourth Proportional to 990,107.94, 1,366,312.40 and 537,389.22

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Solution

The fourth proportional to 990,107.94, 1,366,312.40 and 537,389.22 is: 741,577.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,107.94 : 1,366,312.40 = 537,389.22 : x
  2. Step 2: Convert to fraction form
    990,107.94/1,366,312.40 = 537,389.22/x
  3. Step 3: Cross multiply
    990,107.94x = 1,366,312.40 × 537,389.22
  4. Step 4: Simplify right side
    990,107.94x = 734,241,554,912.33
  5. Step 5: Solve for x
    x = 734,241,554,912.33/990,107.94
  6. Step 6: Final answer
    x = 741,577.28

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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.