Home / 855,850.32-1,283,359.86-429,203.16

Finding the Fourth Proportional to 855,850.32, 1,283,359.86 and 429,203.16

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Solution

The fourth proportional to 855,850.32, 1,283,359.86 and 429,203.16 is: 643,596.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,850.32 : 1,283,359.86 = 429,203.16 : x
  2. Step 2: Convert to fraction form
    855,850.32/1,283,359.86 = 429,203.16/x
  3. Step 3: Cross multiply
    855,850.32x = 1,283,359.86 × 429,203.16
  4. Step 4: Simplify right side
    855,850.32x = 550,822,107,329.16
  5. Step 5: Solve for x
    x = 550,822,107,329.16/855,850.32
  6. Step 6: Final answer
    x = 643,596.31

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1.5x scale

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.