Home / 1,235,115.40-1,852,845.90-525,137.80

Finding the Fourth Proportional to 1,235,115.40, 1,852,845.90 and 525,137.80

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Solution

The fourth proportional to 1,235,115.40, 1,852,845.90 and 525,137.80 is: 787,780.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,115.40 : 1,852,845.90 = 525,137.80 : x
  2. Step 2: Convert to fraction form
    1,235,115.40/1,852,845.90 = 525,137.80/x
  3. Step 3: Cross multiply
    1,235,115.40x = 1,852,845.90 × 525,137.80
  4. Step 4: Simplify right side
    1,235,115.40x = 972,999,419,665.02
  5. Step 5: Solve for x
    x = 972,999,419,665.02/1,235,115.40
  6. Step 6: Final answer
    x = 787,780.17

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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.