Home / 659,023.83-909,278.46-387,004.77

Finding the Fourth Proportional to 659,023.83, 909,278.46 and 387,004.77

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Solution

The fourth proportional to 659,023.83, 909,278.46 and 387,004.77 is: 533,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,023.83 : 909,278.46 = 387,004.77 : x
  2. Step 2: Convert to fraction form
    659,023.83/909,278.46 = 387,004.77/x
  3. Step 3: Cross multiply
    659,023.83x = 909,278.46 × 387,004.77
  4. Step 4: Simplify right side
    659,023.83x = 351,895,101,278.25
  5. Step 5: Solve for x
    x = 351,895,101,278.25/659,023.83
  6. Step 6: Final answer
    x = 533,964.15

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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.