Home / 705,061.96-1,056,542.80-389,609.08

Finding the Fourth Proportional to 705,061.96, 1,056,542.80 and 389,609.08

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Solution

The fourth proportional to 705,061.96, 1,056,542.80 and 389,609.08 is: 583,833.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,061.96 : 1,056,542.80 = 389,609.08 : x
  2. Step 2: Convert to fraction form
    705,061.96/1,056,542.80 = 389,609.08/x
  3. Step 3: Cross multiply
    705,061.96x = 1,056,542.80 × 389,609.08
  4. Step 4: Simplify right side
    705,061.96x = 411,638,668,288.62
  5. Step 5: Solve for x
    x = 411,638,668,288.62/705,061.96
  6. Step 6: Final answer
    x = 583,833.32

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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.