Home / 878,212.02-1,211,932.32-475,804.02

Finding the Fourth Proportional to 878,212.02, 1,211,932.32 and 475,804.02

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Solution

The fourth proportional to 878,212.02, 1,211,932.32 and 475,804.02 is: 656,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,212.02 : 1,211,932.32 = 475,804.02 : x
  2. Step 2: Convert to fraction form
    878,212.02/1,211,932.32 = 475,804.02/x
  3. Step 3: Cross multiply
    878,212.02x = 1,211,932.32 × 475,804.02
  4. Step 4: Simplify right side
    878,212.02x = 576,642,269,823.93
  5. Step 5: Solve for x
    x = 576,642,269,823.93/878,212.02
  6. Step 6: Final answer
    x = 656,609.40

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1.5x scale

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.