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Finding the Fourth Proportional to 630,969.60, 870,733.50 and 344,489.69

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Solution

The fourth proportional to 630,969.60, 870,733.50 and 344,489.69 is: 475,393.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,969.60 : 870,733.50 = 344,489.69 : x
  2. Step 2: Convert to fraction form
    630,969.60/870,733.50 = 344,489.69/x
  3. Step 3: Cross multiply
    630,969.60x = 870,733.50 × 344,489.69
  4. Step 4: Simplify right side
    630,969.60x = 299,958,713,487.62
  5. Step 5: Solve for x
    x = 299,958,713,487.62/630,969.60
  6. Step 6: Final answer
    x = 475,393.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.