Home / 1,100,674.80-1,651,176.23-390,643.38

Finding the Fourth Proportional to 1,100,674.80, 1,651,176.23 and 390,643.38

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Solution

The fourth proportional to 1,100,674.80, 1,651,176.23 and 390,643.38 is: 586,023.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,674.80 : 1,651,176.23 = 390,643.38 : x
  2. Step 2: Convert to fraction form
    1,100,674.80/1,651,176.23 = 390,643.38/x
  3. Step 3: Cross multiply
    1,100,674.80x = 1,651,176.23 × 390,643.38
  4. Step 4: Simplify right side
    1,100,674.80x = 645,021,061,509.64
  5. Step 5: Solve for x
    x = 645,021,061,509.64/1,100,674.80
  6. Step 6: Final answer
    x = 586,023.28

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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.