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Finding the Fourth Proportional to 666,710.01, 920,062.23 and 360,786.36

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Solution

The fourth proportional to 666,710.01, 920,062.23 and 360,786.36 is: 497,886.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,710.01 : 920,062.23 = 360,786.36 : x
  2. Step 2: Convert to fraction form
    666,710.01/920,062.23 = 360,786.36/x
  3. Step 3: Cross multiply
    666,710.01x = 920,062.23 × 360,786.36
  4. Step 4: Simplify right side
    666,710.01x = 331,945,902,935.18
  5. Step 5: Solve for x
    x = 331,945,902,935.18/666,710.01
  6. Step 6: Final answer
    x = 497,886.48

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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.