Home / 1,618,649.80-2,427,974.70-778,841.80

Finding the Fourth Proportional to 1,618,649.80, 2,427,974.70 and 778,841.80

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Solution

The fourth proportional to 1,618,649.80, 2,427,974.70 and 778,841.80 is: 1,168,262.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,649.80 : 2,427,974.70 = 778,841.80 : x
  2. Step 2: Convert to fraction form
    1,618,649.80/2,427,974.70 = 778,841.80/x
  3. Step 3: Cross multiply
    1,618,649.80x = 2,427,974.70 × 778,841.80
  4. Step 4: Simplify right side
    1,618,649.80x = 1,891,008,185,702.46
  5. Step 5: Solve for x
    x = 1,891,008,185,702.46/1,618,649.80
  6. Step 6: Final answer
    x = 1,168,262.70

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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.