Home / 1,542,889.18-2,314,703.28-643,830.79

Finding the Fourth Proportional to 1,542,889.18, 2,314,703.28 and 643,830.79

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Solution

The fourth proportional to 1,542,889.18, 2,314,703.28 and 643,830.79 is: 965,900.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542,889.18 : 2,314,703.28 = 643,830.79 : x
  2. Step 2: Convert to fraction form
    1,542,889.18/2,314,703.28 = 643,830.79/x
  3. Step 3: Cross multiply
    1,542,889.18x = 2,314,703.28 × 643,830.79
  4. Step 4: Simplify right side
    1,542,889.18x = 1,490,277,241,377.99
  5. Step 5: Solve for x
    x = 1,490,277,241,377.99/1,542,889.18
  6. Step 6: Final answer
    x = 965,900.38

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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.