Home / 565,890.40-780,666.96-339,142.24

Finding the Fourth Proportional to 565,890.40, 780,666.96 and 339,142.24

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Solution

The fourth proportional to 565,890.40, 780,666.96 and 339,142.24 is: 467,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,890.40 : 780,666.96 = 339,142.24 : x
  2. Step 2: Convert to fraction form
    565,890.40/780,666.96 = 339,142.24/x
  3. Step 3: Cross multiply
    565,890.40x = 780,666.96 × 339,142.24
  4. Step 4: Simplify right side
    565,890.40x = 264,757,141,508.39
  5. Step 5: Solve for x
    x = 264,757,141,508.39/565,890.40
  6. Step 6: Final answer
    x = 467,859.40

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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.