Home / 948,519.97-1,308,988.53-518,800.10

Finding the Fourth Proportional to 948,519.97, 1,308,988.53 and 518,800.10

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Solution

The fourth proportional to 948,519.97, 1,308,988.53 and 518,800.10 is: 715,961.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,519.97 : 1,308,988.53 = 518,800.10 : x
  2. Step 2: Convert to fraction form
    948,519.97/1,308,988.53 = 518,800.10/x
  3. Step 3: Cross multiply
    948,519.97x = 1,308,988.53 × 518,800.10
  4. Step 4: Simplify right side
    948,519.97x = 679,103,373,717.91
  5. Step 5: Solve for x
    x = 679,103,373,717.91/948,519.97
  6. Step 6: Final answer
    x = 715,961.07

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1.5x scale

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.