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Finding the Fourth Proportional to 577,897.94, 867,018.63 and 278,291.90

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Solution

The fourth proportional to 577,897.94, 867,018.63 and 278,291.90 is: 417,520.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,897.94 : 867,018.63 = 278,291.90 : x
  2. Step 2: Convert to fraction form
    577,897.94/867,018.63 = 278,291.90/x
  3. Step 3: Cross multiply
    577,897.94x = 867,018.63 × 278,291.90
  4. Step 4: Simplify right side
    577,897.94x = 241,284,265,089.24
  5. Step 5: Solve for x
    x = 241,284,265,089.24/577,897.94
  6. Step 6: Final answer
    x = 417,520.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.