Home / 1,228,700.08-1,843,880.10-429,988.54

Finding the Fourth Proportional to 1,228,700.08, 1,843,880.10 and 429,988.54

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Solution

The fourth proportional to 1,228,700.08, 1,843,880.10 and 429,988.54 is: 645,273.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,700.08 : 1,843,880.10 = 429,988.54 : x
  2. Step 2: Convert to fraction form
    1,228,700.08/1,843,880.10 = 429,988.54/x
  3. Step 3: Cross multiply
    1,228,700.08x = 1,843,880.10 × 429,988.54
  4. Step 4: Simplify right side
    1,228,700.08x = 792,847,312,134.05
  5. Step 5: Solve for x
    x = 792,847,312,134.05/1,228,700.08
  6. Step 6: Final answer
    x = 645,273.26

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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.