Home / 1,488,273.60-2,232,928.80-647,428.80

Finding the Fourth Proportional to 1,488,273.60, 2,232,928.80 and 647,428.80

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Solution

The fourth proportional to 1,488,273.60, 2,232,928.80 and 647,428.80 is: 971,368.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,273.60 : 2,232,928.80 = 647,428.80 : x
  2. Step 2: Convert to fraction form
    1,488,273.60/2,232,928.80 = 647,428.80/x
  3. Step 3: Cross multiply
    1,488,273.60x = 2,232,928.80 × 647,428.80
  4. Step 4: Simplify right side
    1,488,273.60x = 1,445,662,413,469.44
  5. Step 5: Solve for x
    x = 1,445,662,413,469.44/1,488,273.60
  6. Step 6: Final answer
    x = 971,368.71

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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.