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Finding the Fourth Proportional to 555,762.63, 766,942.39 and 314,040

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Solution

The fourth proportional to 555,762.63, 766,942.39 and 314,040 is: 433,369.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,762.63 : 766,942.39 = 314,040 : x
  2. Step 2: Convert to fraction form
    555,762.63/766,942.39 = 314,040/x
  3. Step 3: Cross multiply
    555,762.63x = 766,942.39 × 314,040
  4. Step 4: Simplify right side
    555,762.63x = 240,850,588,155.60
  5. Step 5: Solve for x
    x = 240,850,588,155.60/555,762.63
  6. Step 6: Final answer
    x = 433,369.53

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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.