Home / 1,915,357.87-2,643,211.89-1,055,948.88

Finding the Fourth Proportional to 1,915,357.87, 2,643,211.89 and 1,055,948.88

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Solution

The fourth proportional to 1,915,357.87, 2,643,211.89 and 1,055,948.88 is: 1,457,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,357.87 : 2,643,211.89 = 1,055,948.88 : x
  2. Step 2: Convert to fraction form
    1,915,357.87/2,643,211.89 = 1,055,948.88/x
  3. Step 3: Cross multiply
    1,915,357.87x = 2,643,211.89 × 1,055,948.88
  4. Step 4: Simplify right side
    1,915,357.87x = 2,791,096,634,848.18
  5. Step 5: Solve for x
    x = 2,791,096,634,848.18/1,915,357.87
  6. Step 6: Final answer
    x = 1,457,219.40

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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.