Home / 739,499.63-1,020,509.58-399,967.88

Finding the Fourth Proportional to 739,499.63, 1,020,509.58 and 399,967.88

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Solution

The fourth proportional to 739,499.63, 1,020,509.58 and 399,967.88 is: 551,955.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,499.63 : 1,020,509.58 = 399,967.88 : x
  2. Step 2: Convert to fraction form
    739,499.63/1,020,509.58 = 399,967.88/x
  3. Step 3: Cross multiply
    739,499.63x = 1,020,509.58 × 399,967.88
  4. Step 4: Simplify right side
    739,499.63x = 408,171,049,629.62
  5. Step 5: Solve for x
    x = 408,171,049,629.62/739,499.63
  6. Step 6: Final answer
    x = 551,955.72

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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.