Home / 817,622.92-1,226,631.84-256,657.42

Finding the Fourth Proportional to 817,622.92, 1,226,631.84 and 256,657.42

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Solution

The fourth proportional to 817,622.92, 1,226,631.84 and 256,657.42 is: 385,048.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,622.92 : 1,226,631.84 = 256,657.42 : x
  2. Step 2: Convert to fraction form
    817,622.92/1,226,631.84 = 256,657.42/x
  3. Step 3: Cross multiply
    817,622.92x = 1,226,631.84 × 256,657.42
  4. Step 4: Simplify right side
    817,622.92x = 314,824,163,344.25
  5. Step 5: Solve for x
    x = 314,824,163,344.25/817,622.92
  6. Step 6: Final answer
    x = 385,048.11

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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.