Home / 915,914.58-1,263,910.52-507,987.16

Finding the Fourth Proportional to 915,914.58, 1,263,910.52 and 507,987.16

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Solution

The fourth proportional to 915,914.58, 1,263,910.52 and 507,987.16 is: 700,993.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,914.58 : 1,263,910.52 = 507,987.16 : x
  2. Step 2: Convert to fraction form
    915,914.58/1,263,910.52 = 507,987.16/x
  3. Step 3: Cross multiply
    915,914.58x = 1,263,910.52 × 507,987.16
  4. Step 4: Simplify right side
    915,914.58x = 642,050,315,548.92
  5. Step 5: Solve for x
    x = 642,050,315,548.92/915,914.58
  6. Step 6: Final answer
    x = 700,993.66

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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.