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Finding the Fourth Proportional to 565,206.98, 779,999.69 and 307,084.01

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Solution

The fourth proportional to 565,206.98, 779,999.69 and 307,084.01 is: 423,783.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,206.98 : 779,999.69 = 307,084.01 : x
  2. Step 2: Convert to fraction form
    565,206.98/779,999.69 = 307,084.01/x
  3. Step 3: Cross multiply
    565,206.98x = 779,999.69 × 307,084.01
  4. Step 4: Simplify right side
    565,206.98x = 239,525,429,471.67
  5. Step 5: Solve for x
    x = 239,525,429,471.67/565,206.98
  6. Step 6: Final answer
    x = 423,783.57

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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.