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Finding the Fourth Proportional to 630,716.48, 945,410.30 and 314,509.08

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Solution

The fourth proportional to 630,716.48, 945,410.30 and 314,509.08 is: 471,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,716.48 : 945,410.30 = 314,509.08 : x
  2. Step 2: Convert to fraction form
    630,716.48/945,410.30 = 314,509.08/x
  3. Step 3: Cross multiply
    630,716.48x = 945,410.30 × 314,509.08
  4. Step 4: Simplify right side
    630,716.48x = 297,340,123,675.52
  5. Step 5: Solve for x
    x = 297,340,123,675.52/630,716.48
  6. Step 6: Final answer
    x = 471,432.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.