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Finding the Fourth Proportional to 630,584.60, 870,225.24 and 344,123.16

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Solution

The fourth proportional to 630,584.60, 870,225.24 and 344,123.16 is: 474,900.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,584.60 : 870,225.24 = 344,123.16 : x
  2. Step 2: Convert to fraction form
    630,584.60/870,225.24 = 344,123.16/x
  3. Step 3: Cross multiply
    630,584.60x = 870,225.24 × 344,123.16
  4. Step 4: Simplify right side
    630,584.60x = 299,464,659,500.56
  5. Step 5: Solve for x
    x = 299,464,659,500.56/630,584.60
  6. Step 6: Final answer
    x = 474,900.05

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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.