Home / 2,117,267.64-2,921,959.98-1,211,830.20

Finding the Fourth Proportional to 2,117,267.64, 2,921,959.98 and 1,211,830.20

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Solution

The fourth proportional to 2,117,267.64, 2,921,959.98 and 1,211,830.20 is: 1,672,400.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117,267.64 : 2,921,959.98 = 1,211,830.20 : x
  2. Step 2: Convert to fraction form
    2,117,267.64/2,921,959.98 = 1,211,830.20/x
  3. Step 3: Cross multiply
    2,117,267.64x = 2,921,959.98 × 1,211,830.20
  4. Step 4: Simplify right side
    2,117,267.64x = 3,540,919,346,955.40
  5. Step 5: Solve for x
    x = 3,540,919,346,955.40/2,117,267.64
  6. Step 6: Final answer
    x = 1,672,400.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.