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Finding the Fourth Proportional to 565,003.46, 779,710.48 and 306,882.90

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Solution

The fourth proportional to 565,003.46, 779,710.48 and 306,882.90 is: 423,501.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,003.46 : 779,710.48 = 306,882.90 : x
  2. Step 2: Convert to fraction form
    565,003.46/779,710.48 = 306,882.90/x
  3. Step 3: Cross multiply
    565,003.46x = 779,710.48 × 306,882.90
  4. Step 4: Simplify right side
    565,003.46x = 239,279,813,262.79
  5. Step 5: Solve for x
    x = 239,279,813,262.79/565,003.46
  6. Step 6: Final answer
    x = 423,501.50

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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.