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Finding the Fourth Proportional to 564,777.12, 779,401.96 and 310,152

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Solution

The fourth proportional to 564,777.12, 779,401.96 and 310,152 is: 428,015.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,777.12 : 779,401.96 = 310,152 : x
  2. Step 2: Convert to fraction form
    564,777.12/779,401.96 = 310,152/x
  3. Step 3: Cross multiply
    564,777.12x = 779,401.96 × 310,152
  4. Step 4: Simplify right side
    564,777.12x = 241,733,076,697.92
  5. Step 5: Solve for x
    x = 241,733,076,697.92/564,777.12
  6. Step 6: Final answer
    x = 428,015.00

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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.