Home / 728,795.04-1,005,740.85-402,119.34

Finding the Fourth Proportional to 728,795.04, 1,005,740.85 and 402,119.34

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Solution

The fourth proportional to 728,795.04, 1,005,740.85 and 402,119.34 is: 554,926.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,795.04 : 1,005,740.85 = 402,119.34 : x
  2. Step 2: Convert to fraction form
    728,795.04/1,005,740.85 = 402,119.34/x
  3. Step 3: Cross multiply
    728,795.04x = 1,005,740.85 × 402,119.34
  4. Step 4: Simplify right side
    728,795.04x = 404,427,846,813.04
  5. Step 5: Solve for x
    x = 404,427,846,813.04/728,795.04
  6. Step 6: Final answer
    x = 554,926.73

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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.