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Finding the Fourth Proportional to 630,614.48, 870,266.46 and 344,152.98

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Solution

The fourth proportional to 630,614.48, 870,266.46 and 344,152.98 is: 474,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,614.48 : 870,266.46 = 344,152.98 : x
  2. Step 2: Convert to fraction form
    630,614.48/870,266.46 = 344,152.98/x
  3. Step 3: Cross multiply
    630,614.48x = 870,266.46 × 344,152.98
  4. Step 4: Simplify right side
    630,614.48x = 299,504,795,603.05
  5. Step 5: Solve for x
    x = 299,504,795,603.05/630,614.48
  6. Step 6: Final answer
    x = 474,941.20

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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.