Home / 3,121,205.18-4,681,807.80-877,343.18

Finding the Fourth Proportional to 3,121,205.18, 4,681,807.80 and 877,343.18

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Solution

The fourth proportional to 3,121,205.18, 4,681,807.80 and 877,343.18 is: 1,316,014.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,205.18 : 4,681,807.80 = 877,343.18 : x
  2. Step 2: Convert to fraction form
    3,121,205.18/4,681,807.80 = 877,343.18/x
  3. Step 3: Cross multiply
    3,121,205.18x = 4,681,807.80 × 877,343.18
  4. Step 4: Simplify right side
    3,121,205.18x = 4,107,552,143,400.80
  5. Step 5: Solve for x
    x = 4,107,552,143,400.80/3,121,205.18
  6. Step 6: Final answer
    x = 1,316,014.78

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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.