Home / 1,868,483.67-2,578,507.45-1,009,043.88

Finding the Fourth Proportional to 1,868,483.67, 2,578,507.45 and 1,009,043.88

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Solution

The fourth proportional to 1,868,483.67, 2,578,507.45 and 1,009,043.88 is: 1,392,480.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,483.67 : 2,578,507.45 = 1,009,043.88 : x
  2. Step 2: Convert to fraction form
    1,868,483.67/2,578,507.45 = 1,009,043.88/x
  3. Step 3: Cross multiply
    1,868,483.67x = 2,578,507.45 × 1,009,043.88
  4. Step 4: Simplify right side
    1,868,483.67x = 2,601,827,161,956.91
  5. Step 5: Solve for x
    x = 2,601,827,161,956.91/1,868,483.67
  6. Step 6: Final answer
    x = 1,392,480.55

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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.