Home / 685,240.22-1,027,857.08-457,053.50

Finding the Fourth Proportional to 685,240.22, 1,027,857.08 and 457,053.50

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Solution

The fourth proportional to 685,240.22, 1,027,857.08 and 457,053.50 is: 685,578.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,240.22 : 1,027,857.08 = 457,053.50 : x
  2. Step 2: Convert to fraction form
    685,240.22/1,027,857.08 = 457,053.50/x
  3. Step 3: Cross multiply
    685,240.22x = 1,027,857.08 × 457,053.50
  4. Step 4: Simplify right side
    685,240.22x = 469,785,675,913.78
  5. Step 5: Solve for x
    x = 469,785,675,913.78/685,240.22
  6. Step 6: Final answer
    x = 685,578.08

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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.