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Finding the Fourth Proportional to 452,909.54, 678,397.08 and 345,095.30

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Solution

The fourth proportional to 452,909.54, 678,397.08 and 345,095.30 is: 516,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,909.54 : 678,397.08 = 345,095.30 : x
  2. Step 2: Convert to fraction form
    452,909.54/678,397.08 = 345,095.30/x
  3. Step 3: Cross multiply
    452,909.54x = 678,397.08 × 345,095.30
  4. Step 4: Simplify right side
    452,909.54x = 234,111,643,841.72
  5. Step 5: Solve for x
    x = 234,111,643,841.72/452,909.54
  6. Step 6: Final answer
    x = 516,905.97

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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.