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Finding the Fourth Proportional to 714,879.45, 986,287.02 and 456,907.41

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Solution

The fourth proportional to 714,879.45, 986,287.02 and 456,907.41 is: 630,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,879.45 : 986,287.02 = 456,907.41 : x
  2. Step 2: Convert to fraction form
    714,879.45/986,287.02 = 456,907.41/x
  3. Step 3: Cross multiply
    714,879.45x = 986,287.02 × 456,907.41
  4. Step 4: Simplify right side
    714,879.45x = 450,641,847,824.82
  5. Step 5: Solve for x
    x = 450,641,847,824.82/714,879.45
  6. Step 6: Final answer
    x = 630,374.60

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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.