Home / 817,803.70-1,226,956.56-418,724.67

Finding the Fourth Proportional to 817,803.70, 1,226,956.56 and 418,724.67

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Solution

The fourth proportional to 817,803.70, 1,226,956.56 and 418,724.67 is: 628,215.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,803.70 : 1,226,956.56 = 418,724.67 : x
  2. Step 2: Convert to fraction form
    817,803.70/1,226,956.56 = 418,724.67/x
  3. Step 3: Cross multiply
    817,803.70x = 1,226,956.56 × 418,724.67
  4. Step 4: Simplify right side
    817,803.70x = 513,756,980,690.34
  5. Step 5: Solve for x
    x = 513,756,980,690.34/817,803.70
  6. Step 6: Final answer
    x = 628,215.52

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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.