Home / 1,230,342.78-1,845,503.10-388,894.80

Finding the Fourth Proportional to 1,230,342.78, 1,845,503.10 and 388,894.80

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Solution

The fourth proportional to 1,230,342.78, 1,845,503.10 and 388,894.80 is: 583,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,342.78 : 1,845,503.10 = 388,894.80 : x
  2. Step 2: Convert to fraction form
    1,230,342.78/1,845,503.10 = 388,894.80/x
  3. Step 3: Cross multiply
    1,230,342.78x = 1,845,503.10 × 388,894.80
  4. Step 4: Simplify right side
    1,230,342.78x = 717,706,558,973.88
  5. Step 5: Solve for x
    x = 717,706,558,973.88/1,230,342.78
  6. Step 6: Final answer
    x = 583,338.70

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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.