Home / 807,617.60-1,210,065.60-638,489.60

Finding the Fourth Proportional to 807,617.60, 1,210,065.60 and 638,489.60

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Solution

The fourth proportional to 807,617.60, 1,210,065.60 and 638,489.60 is: 956,658.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,617.60 : 1,210,065.60 = 638,489.60 : x
  2. Step 2: Convert to fraction form
    807,617.60/1,210,065.60 = 638,489.60/x
  3. Step 3: Cross multiply
    807,617.60x = 1,210,065.60 × 638,489.60
  4. Step 4: Simplify right side
    807,617.60x = 772,614,300,917.76
  5. Step 5: Solve for x
    x = 772,614,300,917.76/807,617.60
  6. Step 6: Final answer
    x = 956,658.57

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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.