Home / 1,488,011.70-2,232,017.55-778,257.30

Finding the Fourth Proportional to 1,488,011.70, 2,232,017.55 and 778,257.30

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Solution

The fourth proportional to 1,488,011.70, 2,232,017.55 and 778,257.30 is: 1,167,385.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,011.70 : 2,232,017.55 = 778,257.30 : x
  2. Step 2: Convert to fraction form
    1,488,011.70/2,232,017.55 = 778,257.30/x
  3. Step 3: Cross multiply
    1,488,011.70x = 2,232,017.55 × 778,257.30
  4. Step 4: Simplify right side
    1,488,011.70x = 1,737,083,952,015.62
  5. Step 5: Solve for x
    x = 1,737,083,952,015.62/1,488,011.70
  6. Step 6: Final answer
    x = 1,167,385.95

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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.