Home / 764,545.53-1,146,956.58-315,016.35

Finding the Fourth Proportional to 764,545.53, 1,146,956.58 and 315,016.35

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Solution

The fourth proportional to 764,545.53, 1,146,956.58 and 315,016.35 is: 472,581.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,545.53 : 1,146,956.58 = 315,016.35 : x
  2. Step 2: Convert to fraction form
    764,545.53/1,146,956.58 = 315,016.35/x
  3. Step 3: Cross multiply
    764,545.53x = 1,146,956.58 × 315,016.35
  4. Step 4: Simplify right side
    764,545.53x = 361,310,075,440.08
  5. Step 5: Solve for x
    x = 361,310,075,440.08/764,545.53
  6. Step 6: Final answer
    x = 472,581.50

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Double scale
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Similar ratio
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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.