Home / 1,214,117.80-1,822,278.30-615,495.40

Finding the Fourth Proportional to 1,214,117.80, 1,822,278.30 and 615,495.40

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Solution

The fourth proportional to 1,214,117.80, 1,822,278.30 and 615,495.40 is: 923,801.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,117.80 : 1,822,278.30 = 615,495.40 : x
  2. Step 2: Convert to fraction form
    1,214,117.80/1,822,278.30 = 615,495.40/x
  3. Step 3: Cross multiply
    1,214,117.80x = 1,822,278.30 × 615,495.40
  4. Step 4: Simplify right side
    1,214,117.80x = 1,121,603,911,169.82
  5. Step 5: Solve for x
    x = 1,121,603,911,169.82/1,214,117.80
  6. Step 6: Final answer
    x = 923,801.55

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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.