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Finding the Fourth Proportional to 630,595.35, 870,240.09 and 344,133.92

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Solution

The fourth proportional to 630,595.35, 870,240.09 and 344,133.92 is: 474,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,595.35 : 870,240.09 = 344,133.92 : x
  2. Step 2: Convert to fraction form
    630,595.35/870,240.09 = 344,133.92/x
  3. Step 3: Cross multiply
    630,595.35x = 870,240.09 × 344,133.92
  4. Step 4: Simplify right side
    630,595.35x = 299,479,129,161.65
  5. Step 5: Solve for x
    x = 299,479,129,161.65/630,595.35
  6. Step 6: Final answer
    x = 474,914.90

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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.