Home / 785,317.88-1,083,708.51-479,905.16

Finding the Fourth Proportional to 785,317.88, 1,083,708.51 and 479,905.16

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Solution

The fourth proportional to 785,317.88, 1,083,708.51 and 479,905.16 is: 662,250.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,317.88 : 1,083,708.51 = 479,905.16 : x
  2. Step 2: Convert to fraction form
    785,317.88/1,083,708.51 = 479,905.16/x
  3. Step 3: Cross multiply
    785,317.88x = 1,083,708.51 × 479,905.16
  4. Step 4: Simplify right side
    785,317.88x = 520,077,305,884.91
  5. Step 5: Solve for x
    x = 520,077,305,884.91/785,317.88
  6. Step 6: Final answer
    x = 662,250.69

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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.