Home / 467,421.12-645,352.56-276,495.84

Finding the Fourth Proportional to 467,421.12, 645,352.56 and 276,495.84

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Solution

The fourth proportional to 467,421.12, 645,352.56 and 276,495.84 is: 381,748.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,421.12 : 645,352.56 = 276,495.84 : x
  2. Step 2: Convert to fraction form
    467,421.12/645,352.56 = 276,495.84/x
  3. Step 3: Cross multiply
    467,421.12x = 645,352.56 × 276,495.84
  4. Step 4: Simplify right side
    467,421.12x = 178,437,298,173.35
  5. Step 5: Solve for x
    x = 178,437,298,173.35/467,421.12
  6. Step 6: Final answer
    x = 381,748.47

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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.