Home / 1,328,784.43-1,993,438.95-487,343.47

Finding the Fourth Proportional to 1,328,784.43, 1,993,438.95 and 487,343.47

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Solution

The fourth proportional to 1,328,784.43, 1,993,438.95 and 487,343.47 is: 731,111.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,784.43 : 1,993,438.95 = 487,343.47 : x
  2. Step 2: Convert to fraction form
    1,328,784.43/1,993,438.95 = 487,343.47/x
  3. Step 3: Cross multiply
    1,328,784.43x = 1,993,438.95 × 487,343.47
  4. Step 4: Simplify right side
    1,328,784.43x = 971,489,455,126.16
  5. Step 5: Solve for x
    x = 971,489,455,126.16/1,328,784.43
  6. Step 6: Final answer
    x = 731,111.41

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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.