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Finding the Fourth Proportional to 484,768.86, 669,008.61 and 291,235.77

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Solution

The fourth proportional to 484,768.86, 669,008.61 and 291,235.77 is: 401,921.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,768.86 : 669,008.61 = 291,235.77 : x
  2. Step 2: Convert to fraction form
    484,768.86/669,008.61 = 291,235.77/x
  3. Step 3: Cross multiply
    484,768.86x = 669,008.61 × 291,235.77
  4. Step 4: Simplify right side
    484,768.86x = 194,839,237,669.98
  5. Step 5: Solve for x
    x = 194,839,237,669.98/484,768.86
  6. Step 6: Final answer
    x = 401,921.93

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1.5x scale

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.