Home / 828,975.25-1,143,985.85-471,279.25

Finding the Fourth Proportional to 828,975.25, 1,143,985.85 and 471,279.25

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Solution

The fourth proportional to 828,975.25, 1,143,985.85 and 471,279.25 is: 650,365.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,975.25 : 1,143,985.85 = 471,279.25 : x
  2. Step 2: Convert to fraction form
    828,975.25/1,143,985.85 = 471,279.25/x
  3. Step 3: Cross multiply
    828,975.25x = 1,143,985.85 × 471,279.25
  4. Step 4: Simplify right side
    828,975.25x = 539,136,793,398.61
  5. Step 5: Solve for x
    x = 539,136,793,398.61/828,975.25
  6. Step 6: Final answer
    x = 650,365.37

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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.