Home / 690,423.64-952,673.34-435,912.28

Finding the Fourth Proportional to 690,423.64, 952,673.34 and 435,912.28

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Solution

The fourth proportional to 690,423.64, 952,673.34 and 435,912.28 is: 601,488.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,423.64 : 952,673.34 = 435,912.28 : x
  2. Step 2: Convert to fraction form
    690,423.64/952,673.34 = 435,912.28/x
  3. Step 3: Cross multiply
    690,423.64x = 952,673.34 × 435,912.28
  4. Step 4: Simplify right side
    690,423.64x = 415,282,007,734.62
  5. Step 5: Solve for x
    x = 415,282,007,734.62/690,423.64
  6. Step 6: Final answer
    x = 601,488.69

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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.