Home / 690,419.64-952,667.82-435,908.28

Finding the Fourth Proportional to 690,419.64, 952,667.82 and 435,908.28

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Solution

The fourth proportional to 690,419.64, 952,667.82 and 435,908.28 is: 601,483.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,419.64 : 952,667.82 = 435,908.28 : x
  2. Step 2: Convert to fraction form
    690,419.64/952,667.82 = 435,908.28/x
  3. Step 3: Cross multiply
    690,419.64x = 952,667.82 × 435,908.28
  4. Step 4: Simplify right side
    690,419.64x = 415,275,790,827.55
  5. Step 5: Solve for x
    x = 415,275,790,827.55/690,419.64
  6. Step 6: Final answer
    x = 601,483.17

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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.