Home / 1,245,798.69-1,868,853.86-487,542.21

Finding the Fourth Proportional to 1,245,798.69, 1,868,853.86 and 487,542.21

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Solution

The fourth proportional to 1,245,798.69, 1,868,853.86 and 487,542.21 is: 731,374.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,798.69 : 1,868,853.86 = 487,542.21 : x
  2. Step 2: Convert to fraction form
    1,245,798.69/1,868,853.86 = 487,542.21/x
  3. Step 3: Cross multiply
    1,245,798.69x = 1,868,853.86 × 487,542.21
  4. Step 4: Simplify right side
    1,245,798.69x = 911,145,151,621.84
  5. Step 5: Solve for x
    x = 911,145,151,621.84/1,245,798.69
  6. Step 6: Final answer
    x = 731,374.30

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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.