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Finding the Fourth Proportional to 552,473.80, 828,710.70 and 312,341.20

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Solution

The fourth proportional to 552,473.80, 828,710.70 and 312,341.20 is: 468,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,473.80 : 828,710.70 = 312,341.20 : x
  2. Step 2: Convert to fraction form
    552,473.80/828,710.70 = 312,341.20/x
  3. Step 3: Cross multiply
    552,473.80x = 828,710.70 × 312,341.20
  4. Step 4: Simplify right side
    552,473.80x = 258,840,494,490.84
  5. Step 5: Solve for x
    x = 258,840,494,490.84/552,473.80
  6. Step 6: Final answer
    x = 468,511.80

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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.