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Finding the Fourth Proportional to 460,080.10, 634,939.54 and 278,807.88

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Solution

The fourth proportional to 460,080.10, 634,939.54 and 278,807.88 is: 384,772.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,080.10 : 634,939.54 = 278,807.88 : x
  2. Step 2: Convert to fraction form
    460,080.10/634,939.54 = 278,807.88/x
  3. Step 3: Cross multiply
    460,080.10x = 634,939.54 × 278,807.88
  4. Step 4: Simplify right side
    460,080.10x = 177,026,147,075.58
  5. Step 5: Solve for x
    x = 177,026,147,075.58/460,080.10
  6. Step 6: Final answer
    x = 384,772.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.