Home / 1,542,888.80-2,314,702.72-643,830.42

Finding the Fourth Proportional to 1,542,888.80, 2,314,702.72 and 643,830.42

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Solution

The fourth proportional to 1,542,888.80, 2,314,702.72 and 643,830.42 is: 965,899.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542,888.80 : 2,314,702.72 = 643,830.42 : x
  2. Step 2: Convert to fraction form
    1,542,888.80/2,314,702.72 = 643,830.42/x
  3. Step 3: Cross multiply
    1,542,888.80x = 2,314,702.72 × 643,830.42
  4. Step 4: Simplify right side
    1,542,888.80x = 1,490,276,024,392.74
  5. Step 5: Solve for x
    x = 1,490,276,024,392.74/1,542,888.80
  6. Step 6: Final answer
    x = 965,899.83

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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.