Home / 1,100,670.69-1,651,170.03-390,639.27

Finding the Fourth Proportional to 1,100,670.69, 1,651,170.03 and 390,639.27

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Solution

The fourth proportional to 1,100,670.69, 1,651,170.03 and 390,639.27 is: 586,017.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,670.69 : 1,651,170.03 = 390,639.27 : x
  2. Step 2: Convert to fraction form
    1,100,670.69/1,651,170.03 = 390,639.27/x
  3. Step 3: Cross multiply
    1,100,670.69x = 1,651,170.03 × 390,639.27
  4. Step 4: Simplify right side
    1,100,670.69x = 645,011,855,165.08
  5. Step 5: Solve for x
    x = 645,011,855,165.08/1,100,670.69
  6. Step 6: Final answer
    x = 586,017.11

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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.