Home / 1,488,010.20-2,232,015.30-778,255.80

Finding the Fourth Proportional to 1,488,010.20, 2,232,015.30 and 778,255.80

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Solution

The fourth proportional to 1,488,010.20, 2,232,015.30 and 778,255.80 is: 1,167,383.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,010.20 : 2,232,015.30 = 778,255.80 : x
  2. Step 2: Convert to fraction form
    1,488,010.20/2,232,015.30 = 778,255.80/x
  3. Step 3: Cross multiply
    1,488,010.20x = 2,232,015.30 × 778,255.80
  4. Step 4: Simplify right side
    1,488,010.20x = 1,737,078,852,913.74
  5. Step 5: Solve for x
    x = 1,737,078,852,913.74/1,488,010.20
  6. Step 6: Final answer
    x = 1,167,383.70

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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.