Home / 426,931.02-639,067.93-268,827.32

Finding the Fourth Proportional to 426,931.02, 639,067.93 and 268,827.32

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Solution

The fourth proportional to 426,931.02, 639,067.93 and 268,827.32 is: 402,404.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,931.02 : 639,067.93 = 268,827.32 : x
  2. Step 2: Convert to fraction form
    426,931.02/639,067.93 = 268,827.32/x
  3. Step 3: Cross multiply
    426,931.02x = 639,067.93 × 268,827.32
  4. Step 4: Simplify right side
    426,931.02x = 171,798,919,845.45
  5. Step 5: Solve for x
    x = 171,798,919,845.45/426,931.02
  6. Step 6: Final answer
    x = 402,404.40

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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.