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Finding the Fourth Proportional to 666,118.48, 919,250.76 and 364,306

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Solution

The fourth proportional to 666,118.48, 919,250.76 and 364,306 is: 502,746.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,118.48 : 919,250.76 = 364,306 : x
  2. Step 2: Convert to fraction form
    666,118.48/919,250.76 = 364,306/x
  3. Step 3: Cross multiply
    666,118.48x = 919,250.76 × 364,306
  4. Step 4: Simplify right side
    666,118.48x = 334,888,567,372.56
  5. Step 5: Solve for x
    x = 334,888,567,372.56/666,118.48
  6. Step 6: Final answer
    x = 502,746.25

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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.