Home / 1,245,827.81-1,868,897.65-487,571.37

Finding the Fourth Proportional to 1,245,827.81, 1,868,897.65 and 487,571.37

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Solution

The fourth proportional to 1,245,827.81, 1,868,897.65 and 487,571.37 is: 731,418.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,827.81 : 1,868,897.65 = 487,571.37 : x
  2. Step 2: Convert to fraction form
    1,245,827.81/1,868,897.65 = 487,571.37/x
  3. Step 3: Cross multiply
    1,245,827.81x = 1,868,897.65 × 487,571.37
  4. Step 4: Simplify right side
    1,245,827.81x = 911,220,984,146.97
  5. Step 5: Solve for x
    x = 911,220,984,146.97/1,245,827.81
  6. Step 6: Final answer
    x = 731,418.08

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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.