Home / 810,378.80-1,216,662.60-473,764.40

Finding the Fourth Proportional to 810,378.80, 1,216,662.60 and 473,764.40

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Solution

The fourth proportional to 810,378.80, 1,216,662.60 and 473,764.40 is: 711,286.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,378.80 : 1,216,662.60 = 473,764.40 : x
  2. Step 2: Convert to fraction form
    810,378.80/1,216,662.60 = 473,764.40/x
  3. Step 3: Cross multiply
    810,378.80x = 1,216,662.60 × 473,764.40
  4. Step 4: Simplify right side
    810,378.80x = 576,411,426,691.44
  5. Step 5: Solve for x
    x = 576,411,426,691.44/810,378.80
  6. Step 6: Final answer
    x = 711,286.41

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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.