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Finding the Fourth Proportional to 768,995.54, 1,152,490.02 and 556,479.29

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Solution

The fourth proportional to 768,995.54, 1,152,490.02 and 556,479.29 is: 833,992.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,995.54 : 1,152,490.02 = 556,479.29 : x
  2. Step 2: Convert to fraction form
    768,995.54/1,152,490.02 = 556,479.29/x
  3. Step 3: Cross multiply
    768,995.54x = 1,152,490.02 × 556,479.29
  4. Step 4: Simplify right side
    768,995.54x = 641,336,822,299.24
  5. Step 5: Solve for x
    x = 641,336,822,299.24/768,995.54
  6. Step 6: Final answer
    x = 833,992.91

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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.