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Finding the Fourth Proportional to 565,852.50, 780,881.65 and 307,731.89

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Solution

The fourth proportional to 565,852.50, 780,881.65 and 307,731.89 is: 424,672.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,852.50 : 780,881.65 = 307,731.89 : x
  2. Step 2: Convert to fraction form
    565,852.50/780,881.65 = 307,731.89/x
  3. Step 3: Cross multiply
    565,852.50x = 780,881.65 × 307,731.89
  4. Step 4: Simplify right side
    565,852.50x = 240,302,187,203.69
  5. Step 5: Solve for x
    x = 240,302,187,203.69/565,852.50
  6. Step 6: Final answer
    x = 424,672.84

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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.