Home / 4,118,645.28-6,178,859.88-1,689,804.12

Finding the Fourth Proportional to 4,118,645.28, 6,178,859.88 and 1,689,804.12

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Solution

The fourth proportional to 4,118,645.28, 6,178,859.88 and 1,689,804.12 is: 2,535,072.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118,645.28 : 6,178,859.88 = 1,689,804.12 : x
  2. Step 2: Convert to fraction form
    4,118,645.28/6,178,859.88 = 1,689,804.12/x
  3. Step 3: Cross multiply
    4,118,645.28x = 6,178,859.88 × 1,689,804.12
  4. Step 4: Simplify right side
    4,118,645.28x = 10,441,062,882,126.71
  5. Step 5: Solve for x
    x = 10,441,062,882,126.71/4,118,645.28
  6. Step 6: Final answer
    x = 2,535,072.13

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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.