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Finding the Fourth Proportional to 666,682.34, 920,024.04 and 360,758.70

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Solution

The fourth proportional to 666,682.34, 920,024.04 and 360,758.70 is: 497,848.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,682.34 : 920,024.04 = 360,758.70 : x
  2. Step 2: Convert to fraction form
    666,682.34/920,024.04 = 360,758.70/x
  3. Step 3: Cross multiply
    666,682.34x = 920,024.04 × 360,758.70
  4. Step 4: Simplify right side
    666,682.34x = 331,906,676,639.15
  5. Step 5: Solve for x
    x = 331,906,676,639.15/666,682.34
  6. Step 6: Final answer
    x = 497,848.31

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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.