Home / 630,338.60-869,743.50-358,359.56

Finding the Fourth Proportional to 630,338.60, 869,743.50 and 358,359.56

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Solution

The fourth proportional to 630,338.60, 869,743.50 and 358,359.56 is: 494,465.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,338.60 : 869,743.50 = 358,359.56 : x
  2. Step 2: Convert to fraction form
    630,338.60/869,743.50 = 358,359.56/x
  3. Step 3: Cross multiply
    630,338.60x = 869,743.50 × 358,359.56
  4. Step 4: Simplify right side
    630,338.60x = 311,680,897,972.86
  5. Step 5: Solve for x
    x = 311,680,897,972.86/630,338.60
  6. Step 6: Final answer
    x = 494,465.83

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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.