Home / 1,099,340.30-1,648,837.65-389,266.70

Finding the Fourth Proportional to 1,099,340.30, 1,648,837.65 and 389,266.70

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Solution

The fourth proportional to 1,099,340.30, 1,648,837.65 and 389,266.70 is: 583,838.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,340.30 : 1,648,837.65 = 389,266.70 : x
  2. Step 2: Convert to fraction form
    1,099,340.30/1,648,837.65 = 389,266.70/x
  3. Step 3: Cross multiply
    1,099,340.30x = 1,648,837.65 × 389,266.70
  4. Step 4: Simplify right side
    1,099,340.30x = 641,837,590,851.26
  5. Step 5: Solve for x
    x = 641,837,590,851.26/1,099,340.30
  6. Step 6: Final answer
    x = 583,838.86

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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.