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Finding the Fourth Proportional to 630,957.50, 870,716.86 and 344,477.59

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Solution

The fourth proportional to 630,957.50, 870,716.86 and 344,477.59 is: 475,376.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,957.50 : 870,716.86 = 344,477.59 : x
  2. Step 2: Convert to fraction form
    630,957.50/870,716.86 = 344,477.59/x
  3. Step 3: Cross multiply
    630,957.50x = 870,716.86 × 344,477.59
  4. Step 4: Simplify right side
    630,957.50x = 299,942,442,467.18
  5. Step 5: Solve for x
    x = 299,942,442,467.18/630,957.50
  6. Step 6: Final answer
    x = 475,376.62

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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.