Home / 864,983.21-1,297,341.77-288,616.77

Finding the Fourth Proportional to 864,983.21, 1,297,341.77 and 288,616.77

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Solution

The fourth proportional to 864,983.21, 1,297,341.77 and 288,616.77 is: 432,880.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,983.21 : 1,297,341.77 = 288,616.77 : x
  2. Step 2: Convert to fraction form
    864,983.21/1,297,341.77 = 288,616.77/x
  3. Step 3: Cross multiply
    864,983.21x = 1,297,341.77 × 288,616.77
  4. Step 4: Simplify right side
    864,983.21x = 374,434,589,800.40
  5. Step 5: Solve for x
    x = 374,434,589,800.40/864,983.21
  6. Step 6: Final answer
    x = 432,880.76

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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.