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Finding the Fourth Proportional to 630,614.35, 870,266.29 and 344,152.85

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Solution

The fourth proportional to 630,614.35, 870,266.29 and 344,152.85 is: 474,941.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,614.35 : 870,266.29 = 344,152.85 : x
  2. Step 2: Convert to fraction form
    630,614.35/870,266.29 = 344,152.85/x
  3. Step 3: Cross multiply
    630,614.35x = 870,266.29 × 344,152.85
  4. Step 4: Simplify right side
    630,614.35x = 299,504,625,277.71
  5. Step 5: Solve for x
    x = 299,504,625,277.71/630,614.35
  6. Step 6: Final answer
    x = 474,941.03

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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.