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Finding the Fourth Proportional to 672,347.52, 927,479.16 and 430,369.74

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Solution

The fourth proportional to 672,347.52, 927,479.16 and 430,369.74 is: 593,679.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,347.52 : 927,479.16 = 430,369.74 : x
  2. Step 2: Convert to fraction form
    672,347.52/927,479.16 = 430,369.74/x
  3. Step 3: Cross multiply
    672,347.52x = 927,479.16 × 430,369.74
  4. Step 4: Simplify right side
    672,347.52x = 399,158,964,944.62
  5. Step 5: Solve for x
    x = 399,158,964,944.62/672,347.52
  6. Step 6: Final answer
    x = 593,679.54

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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.