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Finding the Fourth Proportional to 646,393.46, 968,279.76 and 299,689.94

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Solution

The fourth proportional to 646,393.46, 968,279.76 and 299,689.94 is: 448,927.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,393.46 : 968,279.76 = 299,689.94 : x
  2. Step 2: Convert to fraction form
    646,393.46/968,279.76 = 299,689.94/x
  3. Step 3: Cross multiply
    646,393.46x = 968,279.76 × 299,689.94
  4. Step 4: Simplify right side
    646,393.46x = 290,183,705,598.31
  5. Step 5: Solve for x
    x = 290,183,705,598.31/646,393.46
  6. Step 6: Final answer
    x = 448,927.36

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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.