Home / 3,118,538.10-4,677,807.15-988,618.80

Finding the Fourth Proportional to 3,118,538.10, 4,677,807.15 and 988,618.80

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Solution

The fourth proportional to 3,118,538.10, 4,677,807.15 and 988,618.80 is: 1,482,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,538.10 : 4,677,807.15 = 988,618.80 : x
  2. Step 2: Convert to fraction form
    3,118,538.10/4,677,807.15 = 988,618.80/x
  3. Step 3: Cross multiply
    3,118,538.10x = 4,677,807.15 × 988,618.80
  4. Step 4: Simplify right side
    3,118,538.10x = 4,624,568,091,264.42
  5. Step 5: Solve for x
    x = 4,624,568,091,264.42/3,118,538.10
  6. Step 6: Final answer
    x = 1,482,928.20

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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.