Home / 485,829.42-670,445.64-270,983.28

Finding the Fourth Proportional to 485,829.42, 670,445.64 and 270,983.28

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Solution

The fourth proportional to 485,829.42, 670,445.64 and 270,983.28 is: 373,957.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,829.42 : 670,445.64 = 270,983.28 : x
  2. Step 2: Convert to fraction form
    485,829.42/670,445.64 = 270,983.28/x
  3. Step 3: Cross multiply
    485,829.42x = 670,445.64 × 270,983.28
  4. Step 4: Simplify right side
    485,829.42x = 181,679,558,588.90
  5. Step 5: Solve for x
    x = 181,679,558,588.90/485,829.42
  6. Step 6: Final answer
    x = 373,957.51

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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.