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Finding the Fourth Proportional to 672,733.33, 928,596.96 and 400,886.50

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Solution

The fourth proportional to 672,733.33, 928,596.96 and 400,886.50 is: 553,357.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,733.33 : 928,596.96 = 400,886.50 : x
  2. Step 2: Convert to fraction form
    672,733.33/928,596.96 = 400,886.50/x
  3. Step 3: Cross multiply
    672,733.33x = 928,596.96 × 400,886.50
  4. Step 4: Simplify right side
    672,733.33x = 372,261,984,624.67
  5. Step 5: Solve for x
    x = 372,261,984,624.67/672,733.33
  6. Step 6: Final answer
    x = 553,357.42

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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.