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Finding the Fourth Proportional to 630,123.60, 869,572.04 and 343,645.52

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Solution

The fourth proportional to 630,123.60, 869,572.04 and 343,645.52 is: 474,231.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,123.60 : 869,572.04 = 343,645.52 : x
  2. Step 2: Convert to fraction form
    630,123.60/869,572.04 = 343,645.52/x
  3. Step 3: Cross multiply
    630,123.60x = 869,572.04 × 343,645.52
  4. Step 4: Simplify right side
    630,123.60x = 298,824,535,863.26
  5. Step 5: Solve for x
    x = 298,824,535,863.26/630,123.60
  6. Step 6: Final answer
    x = 474,231.62

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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.