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Finding the Fourth Proportional to 666,754.74, 920,114.37 and 360,824.36

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Solution

The fourth proportional to 666,754.74, 920,114.37 and 360,824.36 is: 497,933.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,754.74 : 920,114.37 = 360,824.36 : x
  2. Step 2: Convert to fraction form
    666,754.74/920,114.37 = 360,824.36/x
  3. Step 3: Cross multiply
    666,754.74x = 920,114.37 × 360,824.36
  4. Step 4: Simplify right side
    666,754.74x = 331,999,674,081.48
  5. Step 5: Solve for x
    x = 331,999,674,081.48/666,754.74
  6. Step 6: Final answer
    x = 497,933.73

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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.