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Finding the Fourth Proportional to 666,727.32, 920,077.20 and 360,797.16

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Solution

The fourth proportional to 666,727.32, 920,077.20 and 360,797.16 is: 497,896.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,727.32 : 920,077.20 = 360,797.16 : x
  2. Step 2: Convert to fraction form
    666,727.32/920,077.20 = 360,797.16/x
  3. Step 3: Cross multiply
    666,727.32x = 920,077.20 × 360,797.16
  4. Step 4: Simplify right side
    666,727.32x = 331,961,240,740.75
  5. Step 5: Solve for x
    x = 331,961,240,740.75/666,727.32
  6. Step 6: Final answer
    x = 497,896.56

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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.