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Finding the Fourth Proportional to 666,165.84, 919,330.56 and 364,359.84

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Solution

The fourth proportional to 666,165.84, 919,330.56 and 364,359.84 is: 502,828.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,165.84 : 919,330.56 = 364,359.84 : x
  2. Step 2: Convert to fraction form
    666,165.84/919,330.56 = 364,359.84/x
  3. Step 3: Cross multiply
    666,165.84x = 919,330.56 × 364,359.84
  4. Step 4: Simplify right side
    666,165.84x = 334,967,135,748.71
  5. Step 5: Solve for x
    x = 334,967,135,748.71/666,165.84
  6. Step 6: Final answer
    x = 502,828.45

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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.