Home / 1,200,538.07-1,800,810.15-490,565.98

Finding the Fourth Proportional to 1,200,538.07, 1,800,810.15 and 490,565.98

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Solution

The fourth proportional to 1,200,538.07, 1,800,810.15 and 490,565.98 is: 735,850.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,538.07 : 1,800,810.15 = 490,565.98 : x
  2. Step 2: Convert to fraction form
    1,200,538.07/1,800,810.15 = 490,565.98/x
  3. Step 3: Cross multiply
    1,200,538.07x = 1,800,810.15 × 490,565.98
  4. Step 4: Simplify right side
    1,200,538.07x = 883,416,196,028.70
  5. Step 5: Solve for x
    x = 883,416,196,028.70/1,200,538.07
  6. Step 6: Final answer
    x = 735,850.21

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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.