Home / 774,579.51-1,161,422.30-300,711.29

Finding the Fourth Proportional to 774,579.51, 1,161,422.30 and 300,711.29

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Solution

The fourth proportional to 774,579.51, 1,161,422.30 and 300,711.29 is: 450,893.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,579.51 : 1,161,422.30 = 300,711.29 : x
  2. Step 2: Convert to fraction form
    774,579.51/1,161,422.30 = 300,711.29/x
  3. Step 3: Cross multiply
    774,579.51x = 1,161,422.30 × 300,711.29
  4. Step 4: Simplify right side
    774,579.51x = 349,252,791,320.93
  5. Step 5: Solve for x
    x = 349,252,791,320.93/774,579.51
  6. Step 6: Final answer
    x = 450,893.40

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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.