Home / 1,328,783.43-1,993,437.45-487,342.47

Finding the Fourth Proportional to 1,328,783.43, 1,993,437.45 and 487,342.47

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Solution

The fourth proportional to 1,328,783.43, 1,993,437.45 and 487,342.47 is: 731,109.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,783.43 : 1,993,437.45 = 487,342.47 : x
  2. Step 2: Convert to fraction form
    1,328,783.43/1,993,437.45 = 487,342.47/x
  3. Step 3: Cross multiply
    1,328,783.43x = 1,993,437.45 × 487,342.47
  4. Step 4: Simplify right side
    1,328,783.43x = 971,486,730,673.50
  5. Step 5: Solve for x
    x = 971,486,730,673.50/1,328,783.43
  6. Step 6: Final answer
    x = 731,109.91

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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.