Home / 990,103.07-1,366,305.68-537,384.35

Finding the Fourth Proportional to 990,103.07, 1,366,305.68 and 537,384.35

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Solution

The fourth proportional to 990,103.07, 1,366,305.68 and 537,384.35 is: 741,570.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,103.07 : 1,366,305.68 = 537,384.35 : x
  2. Step 2: Convert to fraction form
    990,103.07/1,366,305.68 = 537,384.35/x
  3. Step 3: Cross multiply
    990,103.07x = 1,366,305.68 × 537,384.35
  4. Step 4: Simplify right side
    990,103.07x = 734,231,289,748.11
  5. Step 5: Solve for x
    x = 734,231,289,748.11/990,103.07
  6. Step 6: Final answer
    x = 741,570.56

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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.