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Finding the Fourth Proportional to 400,125.50, 599,521.88 and 281,547.72

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Solution

The fourth proportional to 400,125.50, 599,521.88 and 281,547.72 is: 421,852.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,125.50 : 599,521.88 = 281,547.72 : x
  2. Step 2: Convert to fraction form
    400,125.50/599,521.88 = 281,547.72/x
  3. Step 3: Cross multiply
    400,125.50x = 599,521.88 × 281,547.72
  4. Step 4: Simplify right side
    400,125.50x = 168,794,015,406.50
  5. Step 5: Solve for x
    x = 168,794,015,406.50/400,125.50
  6. Step 6: Final answer
    x = 421,852.69

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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.