Home / 787,907.24-1,087,297.70-448,368.04

Finding the Fourth Proportional to 787,907.24, 1,087,297.70 and 448,368.04

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Solution

The fourth proportional to 787,907.24, 1,087,297.70 and 448,368.04 is: 618,739.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,907.24 : 1,087,297.70 = 448,368.04 : x
  2. Step 2: Convert to fraction form
    787,907.24/1,087,297.70 = 448,368.04/x
  3. Step 3: Cross multiply
    787,907.24x = 1,087,297.70 × 448,368.04
  4. Step 4: Simplify right side
    787,907.24x = 487,509,538,645.51
  5. Step 5: Solve for x
    x = 487,509,538,645.51/787,907.24
  6. Step 6: Final answer
    x = 618,739.76

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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.