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Finding the Fourth Proportional to 865,840.72, 1,194,864.62 and 483,873.88

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Solution

The fourth proportional to 865,840.72, 1,194,864.62 and 483,873.88 is: 667,748.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,840.72 : 1,194,864.62 = 483,873.88 : x
  2. Step 2: Convert to fraction form
    865,840.72/1,194,864.62 = 483,873.88/x
  3. Step 3: Cross multiply
    865,840.72x = 1,194,864.62 × 483,873.88
  4. Step 4: Simplify right side
    865,840.72x = 578,163,779,754.13
  5. Step 5: Solve for x
    x = 578,163,779,754.13/865,840.72
  6. Step 6: Final answer
    x = 667,748.43

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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.