Home / 690,633.66-1,035,467.97-306,173.40

Finding the Fourth Proportional to 690,633.66, 1,035,467.97 and 306,173.40

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Solution

The fourth proportional to 690,633.66, 1,035,467.97 and 306,173.40 is: 459,046.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,633.66 : 1,035,467.97 = 306,173.40 : x
  2. Step 2: Convert to fraction form
    690,633.66/1,035,467.97 = 306,173.40/x
  3. Step 3: Cross multiply
    690,633.66x = 1,035,467.97 × 306,173.40
  4. Step 4: Simplify right side
    690,633.66x = 317,032,748,966.00
  5. Step 5: Solve for x
    x = 317,032,748,966.00/690,633.66
  6. Step 6: Final answer
    x = 459,046.19

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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.