Home / 723,710.80-1,085,566.20-471,768.40

Finding the Fourth Proportional to 723,710.80, 1,085,566.20 and 471,768.40

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Solution

The fourth proportional to 723,710.80, 1,085,566.20 and 471,768.40 is: 707,652.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,710.80 : 1,085,566.20 = 471,768.40 : x
  2. Step 2: Convert to fraction form
    723,710.80/1,085,566.20 = 471,768.40/x
  3. Step 3: Cross multiply
    723,710.80x = 1,085,566.20 × 471,768.40
  4. Step 4: Simplify right side
    723,710.80x = 512,135,829,268.08
  5. Step 5: Solve for x
    x = 512,135,829,268.08/723,710.80
  6. Step 6: Final answer
    x = 707,652.60

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Double scale
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Similar ratio
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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.