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Finding the Fourth Proportional to 666,950.79, 920,392.64 and 361,026.24

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Solution

The fourth proportional to 666,950.79, 920,392.64 and 361,026.24 is: 498,216.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,950.79 : 920,392.64 = 361,026.24 : x
  2. Step 2: Convert to fraction form
    666,950.79/920,392.64 = 361,026.24/x
  3. Step 3: Cross multiply
    666,950.79x = 920,392.64 × 361,026.24
  4. Step 4: Simplify right side
    666,950.79x = 332,285,892,337.74
  5. Step 5: Solve for x
    x = 332,285,892,337.74/666,950.79
  6. Step 6: Final answer
    x = 498,216.51

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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.