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Finding the Fourth Proportional to 630,545.27, 870,173.49 and 344,081.08

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Solution

The fourth proportional to 630,545.27, 870,173.49 and 344,081.08 is: 474,843.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,545.27 : 870,173.49 = 344,081.08 : x
  2. Step 2: Convert to fraction form
    630,545.27/870,173.49 = 344,081.08/x
  3. Step 3: Cross multiply
    630,545.27x = 870,173.49 × 344,081.08
  4. Step 4: Simplify right side
    630,545.27x = 299,410,231,405.98
  5. Step 5: Solve for x
    x = 299,410,231,405.98/630,545.27
  6. Step 6: Final answer
    x = 474,843.35

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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.