Home / 721,875.33-1,084,775.82-385,153.88

Finding the Fourth Proportional to 721,875.33, 1,084,775.82 and 385,153.88

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Solution

The fourth proportional to 721,875.33, 1,084,775.82 and 385,153.88 is: 578,778.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,875.33 : 1,084,775.82 = 385,153.88 : x
  2. Step 2: Convert to fraction form
    721,875.33/1,084,775.82 = 385,153.88/x
  3. Step 3: Cross multiply
    721,875.33x = 1,084,775.82 × 385,153.88
  4. Step 4: Simplify right side
    721,875.33x = 417,805,610,579.30
  5. Step 5: Solve for x
    x = 417,805,610,579.30/721,875.33
  6. Step 6: Final answer
    x = 578,778.07

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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.