Home / 893,730.80-1,339,840.92-387,909.20

Finding the Fourth Proportional to 893,730.80, 1,339,840.92 and 387,909.20

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Solution

The fourth proportional to 893,730.80, 1,339,840.92 and 387,909.20 is: 581,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,730.80 : 1,339,840.92 = 387,909.20 : x
  2. Step 2: Convert to fraction form
    893,730.80/1,339,840.92 = 387,909.20/x
  3. Step 3: Cross multiply
    893,730.80x = 1,339,840.92 × 387,909.20
  4. Step 4: Simplify right side
    893,730.80x = 519,736,619,404.46
  5. Step 5: Solve for x
    x = 519,736,619,404.46/893,730.80
  6. Step 6: Final answer
    x = 581,535.98

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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.