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Finding the Fourth Proportional to 630,545.46, 870,173.75 and 344,081.27

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Solution

The fourth proportional to 630,545.46, 870,173.75 and 344,081.27 is: 474,843.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,545.46 : 870,173.75 = 344,081.27 : x
  2. Step 2: Convert to fraction form
    630,545.46/870,173.75 = 344,081.27/x
  3. Step 3: Cross multiply
    630,545.46x = 870,173.75 × 344,081.27
  4. Step 4: Simplify right side
    630,545.46x = 299,410,484,239.69
  5. Step 5: Solve for x
    x = 299,410,484,239.69/630,545.46
  6. Step 6: Final answer
    x = 474,843.61

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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.