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Finding the Fourth Proportional to 672,327.47, 927,811.90 and 370,521.47

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Solution

The fourth proportional to 672,327.47, 927,811.90 and 370,521.47 is: 511,319.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,327.47 : 927,811.90 = 370,521.47 : x
  2. Step 2: Convert to fraction form
    672,327.47/927,811.90 = 370,521.47/x
  3. Step 3: Cross multiply
    672,327.47x = 927,811.90 × 370,521.47
  4. Step 4: Simplify right side
    672,327.47x = 343,774,229,071.49
  5. Step 5: Solve for x
    x = 343,774,229,071.49/672,327.47
  6. Step 6: Final answer
    x = 511,319.62

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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.