Home / 764,473.60-1,146,848.10-314,948.80

Finding the Fourth Proportional to 764,473.60, 1,146,848.10 and 314,948.80

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Solution

The fourth proportional to 764,473.60, 1,146,848.10 and 314,948.80 is: 472,479.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,473.60 : 1,146,848.10 = 314,948.80 : x
  2. Step 2: Convert to fraction form
    764,473.60/1,146,848.10 = 314,948.80/x
  3. Step 3: Cross multiply
    764,473.60x = 1,146,848.10 × 314,948.80
  4. Step 4: Simplify right side
    764,473.60x = 361,198,432,877.28
  5. Step 5: Solve for x
    x = 361,198,432,877.28/764,473.60
  6. Step 6: Final answer
    x = 472,479.93

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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.