Home / 774,033.84-1,067,657.76-487,313.28

Finding the Fourth Proportional to 774,033.84, 1,067,657.76 and 487,313.28

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Solution

The fourth proportional to 774,033.84, 1,067,657.76 and 487,313.28 is: 672,171.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,033.84 : 1,067,657.76 = 487,313.28 : x
  2. Step 2: Convert to fraction form
    774,033.84/1,067,657.76 = 487,313.28/x
  3. Step 3: Cross multiply
    774,033.84x = 1,067,657.76 × 487,313.28
  4. Step 4: Simplify right side
    774,033.84x = 520,283,804,943.05
  5. Step 5: Solve for x
    x = 520,283,804,943.05/774,033.84
  6. Step 6: Final answer
    x = 672,171.91

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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.