Home / 638,374.14-880,962.24-351,904.50

Finding the Fourth Proportional to 638,374.14, 880,962.24 and 351,904.50

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Solution

The fourth proportional to 638,374.14, 880,962.24 and 351,904.50 is: 485,631.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,374.14 : 880,962.24 = 351,904.50 : x
  2. Step 2: Convert to fraction form
    638,374.14/880,962.24 = 351,904.50/x
  3. Step 3: Cross multiply
    638,374.14x = 880,962.24 × 351,904.50
  4. Step 4: Simplify right side
    638,374.14x = 310,014,576,586.08
  5. Step 5: Solve for x
    x = 310,014,576,586.08/638,374.14
  6. Step 6: Final answer
    x = 485,631.48

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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.