Home / 377,369.04-521,516.47-309,278.62

Finding the Fourth Proportional to 377,369.04, 521,516.47 and 309,278.62

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Solution

The fourth proportional to 377,369.04, 521,516.47 and 309,278.62 is: 427,416.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,369.04 : 521,516.47 = 309,278.62 : x
  2. Step 2: Convert to fraction form
    377,369.04/521,516.47 = 309,278.62/x
  3. Step 3: Cross multiply
    377,369.04x = 521,516.47 × 309,278.62
  4. Step 4: Simplify right side
    377,369.04x = 161,293,892,602.48
  5. Step 5: Solve for x
    x = 161,293,892,602.48/377,369.04
  6. Step 6: Final answer
    x = 427,416.87

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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.