Home / 3,121,369.20-4,678,943.40-1,435,532.40

Finding the Fourth Proportional to 3,121,369.20, 4,678,943.40 and 1,435,532.40

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Solution

The fourth proportional to 3,121,369.20, 4,678,943.40 and 1,435,532.40 is: 2,151,868.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,369.20 : 4,678,943.40 = 1,435,532.40 : x
  2. Step 2: Convert to fraction form
    3,121,369.20/4,678,943.40 = 1,435,532.40/x
  3. Step 3: Cross multiply
    3,121,369.20x = 4,678,943.40 × 1,435,532.40
  4. Step 4: Simplify right side
    3,121,369.20x = 6,716,774,848,466.16
  5. Step 5: Solve for x
    x = 6,716,774,848,466.16/3,121,369.20
  6. Step 6: Final answer
    x = 2,151,868.11

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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.