Home / 2,711,329.12-4,066,280.88-1,288,554.40

Finding the Fourth Proportional to 2,711,329.12, 4,066,280.88 and 1,288,554.40

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Solution

The fourth proportional to 2,711,329.12, 4,066,280.88 and 1,288,554.40 is: 1,932,492.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711,329.12 : 4,066,280.88 = 1,288,554.40 : x
  2. Step 2: Convert to fraction form
    2,711,329.12/4,066,280.88 = 1,288,554.40/x
  3. Step 3: Cross multiply
    2,711,329.12x = 4,066,280.88 × 1,288,554.40
  4. Step 4: Simplify right side
    2,711,329.12x = 5,239,624,119,559.87
  5. Step 5: Solve for x
    x = 5,239,624,119,559.87/2,711,329.12
  6. Step 6: Final answer
    x = 1,932,492.84

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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.