Home / 1,326,101.70-1,989,152.55-328,829.70

Finding the Fourth Proportional to 1,326,101.70, 1,989,152.55 and 328,829.70

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Solution

The fourth proportional to 1,326,101.70, 1,989,152.55 and 328,829.70 is: 493,244.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,101.70 : 1,989,152.55 = 328,829.70 : x
  2. Step 2: Convert to fraction form
    1,326,101.70/1,989,152.55 = 328,829.70/x
  3. Step 3: Cross multiply
    1,326,101.70x = 1,989,152.55 × 328,829.70
  4. Step 4: Simplify right side
    1,326,101.70x = 654,092,436,270.74
  5. Step 5: Solve for x
    x = 654,092,436,270.74/1,326,101.70
  6. Step 6: Final answer
    x = 493,244.55

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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.