Home / 3,011,878.32-4,518,371.88-990,236.40

Finding the Fourth Proportional to 3,011,878.32, 4,518,371.88 and 990,236.40

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Solution

The fourth proportional to 3,011,878.32, 4,518,371.88 and 990,236.40 is: 1,485,536.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011,878.32 : 4,518,371.88 = 990,236.40 : x
  2. Step 2: Convert to fraction form
    3,011,878.32/4,518,371.88 = 990,236.40/x
  3. Step 3: Cross multiply
    3,011,878.32x = 4,518,371.88 × 990,236.40
  4. Step 4: Simplify right side
    3,011,878.32x = 4,474,256,304,312.43
  5. Step 5: Solve for x
    x = 4,474,256,304,312.43/3,011,878.32
  6. Step 6: Final answer
    x = 1,485,536.87

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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.