Home / 1,423,972.64-2,135,686.79-426,700.64

Finding the Fourth Proportional to 1,423,972.64, 2,135,686.79 and 426,700.64

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Solution

The fourth proportional to 1,423,972.64, 2,135,686.79 and 426,700.64 is: 639,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,972.64 : 2,135,686.79 = 426,700.64 : x
  2. Step 2: Convert to fraction form
    1,423,972.64/2,135,686.79 = 426,700.64/x
  3. Step 3: Cross multiply
    1,423,972.64x = 2,135,686.79 × 426,700.64
  4. Step 4: Simplify right side
    1,423,972.64x = 911,298,907,320.61
  5. Step 5: Solve for x
    x = 911,298,907,320.61/1,423,972.64
  6. Step 6: Final answer
    x = 639,969.40

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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.