Home / 785,027.72-1,083,208.70-462,800.16

Finding the Fourth Proportional to 785,027.72, 1,083,208.70 and 462,800.16

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Solution

The fourth proportional to 785,027.72, 1,083,208.70 and 462,800.16 is: 638,587.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,027.72 : 1,083,208.70 = 462,800.16 : x
  2. Step 2: Convert to fraction form
    785,027.72/1,083,208.70 = 462,800.16/x
  3. Step 3: Cross multiply
    785,027.72x = 1,083,208.70 × 462,800.16
  4. Step 4: Simplify right side
    785,027.72x = 501,309,160,830.39
  5. Step 5: Solve for x
    x = 501,309,160,830.39/785,027.72
  6. Step 6: Final answer
    x = 638,587.84

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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.