Home / 905,880.40-1,249,977.99-497,999.50

Finding the Fourth Proportional to 905,880.40, 1,249,977.99 and 497,999.50

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Solution

The fourth proportional to 905,880.40, 1,249,977.99 and 497,999.50 is: 687,164.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,880.40 : 1,249,977.99 = 497,999.50 : x
  2. Step 2: Convert to fraction form
    905,880.40/1,249,977.99 = 497,999.50/x
  3. Step 3: Cross multiply
    905,880.40x = 1,249,977.99 × 497,999.50
  4. Step 4: Simplify right side
    905,880.40x = 622,488,414,031.01
  5. Step 5: Solve for x
    x = 622,488,414,031.01/905,880.40
  6. Step 6: Final answer
    x = 687,164.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.