Home / 1,272,320.11-1,908,478.94-325,689.31

Finding the Fourth Proportional to 1,272,320.11, 1,908,478.94 and 325,689.31

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Solution

The fourth proportional to 1,272,320.11, 1,908,478.94 and 325,689.31 is: 488,533.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,320.11 : 1,908,478.94 = 325,689.31 : x
  2. Step 2: Convert to fraction form
    1,272,320.11/1,908,478.94 = 325,689.31/x
  3. Step 3: Cross multiply
    1,272,320.11x = 1,908,478.94 × 325,689.31
  4. Step 4: Simplify right side
    1,272,320.11x = 621,571,181,888.09
  5. Step 5: Solve for x
    x = 621,571,181,888.09/1,272,320.11
  6. Step 6: Final answer
    x = 488,533.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.