Home / 1,011,392.10-1,517,309.69-380,305.91

Finding the Fourth Proportional to 1,011,392.10, 1,517,309.69 and 380,305.91

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Solution

The fourth proportional to 1,011,392.10, 1,517,309.69 and 380,305.91 is: 570,542.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,392.10 : 1,517,309.69 = 380,305.91 : x
  2. Step 2: Convert to fraction form
    1,011,392.10/1,517,309.69 = 380,305.91/x
  3. Step 3: Cross multiply
    1,011,392.10x = 1,517,309.69 × 380,305.91
  4. Step 4: Simplify right side
    1,011,392.10x = 577,041,844,299.01
  5. Step 5: Solve for x
    x = 577,041,844,299.01/1,011,392.10
  6. Step 6: Final answer
    x = 570,542.17

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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.