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Finding the Fourth Proportional to 553,680.30, 830,520.45 and 301,081.80

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Solution

The fourth proportional to 553,680.30, 830,520.45 and 301,081.80 is: 451,622.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,680.30 : 830,520.45 = 301,081.80 : x
  2. Step 2: Convert to fraction form
    553,680.30/830,520.45 = 301,081.80/x
  3. Step 3: Cross multiply
    553,680.30x = 830,520.45 × 301,081.80
  4. Step 4: Simplify right side
    553,680.30x = 250,054,592,022.81
  5. Step 5: Solve for x
    x = 250,054,592,022.81/553,680.30
  6. Step 6: Final answer
    x = 451,622.70

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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.