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Finding the Fourth Proportional to 666,700.56, 920,039.64 and 360,770.22

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Solution

The fourth proportional to 666,700.56, 920,039.64 and 360,770.22 is: 497,859.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,700.56 : 920,039.64 = 360,770.22 : x
  2. Step 2: Convert to fraction form
    666,700.56/920,039.64 = 360,770.22/x
  3. Step 3: Cross multiply
    666,700.56x = 920,039.64 × 360,770.22
  4. Step 4: Simplify right side
    666,700.56x = 331,922,903,331.52
  5. Step 5: Solve for x
    x = 331,922,903,331.52/666,700.56
  6. Step 6: Final answer
    x = 497,859.04

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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.