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Finding the Fourth Proportional to 553,344.30, 830,016.45 and 503,480.70

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Solution

The fourth proportional to 553,344.30, 830,016.45 and 503,480.70 is: 755,221.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,344.30 : 830,016.45 = 503,480.70 : x
  2. Step 2: Convert to fraction form
    553,344.30/830,016.45 = 503,480.70/x
  3. Step 3: Cross multiply
    553,344.30x = 830,016.45 × 503,480.70
  4. Step 4: Simplify right side
    553,344.30x = 417,897,263,257.52
  5. Step 5: Solve for x
    x = 417,897,263,257.52/553,344.30
  6. Step 6: Final answer
    x = 755,221.05

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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.