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Finding the Fourth Proportional to 690,255.68, 952,596.06 and 418,347.32

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Solution

The fourth proportional to 690,255.68, 952,596.06 and 418,347.32 is: 577,345.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,255.68 : 952,596.06 = 418,347.32 : x
  2. Step 2: Convert to fraction form
    690,255.68/952,596.06 = 418,347.32/x
  3. Step 3: Cross multiply
    690,255.68x = 952,596.06 × 418,347.32
  4. Step 4: Simplify right side
    690,255.68x = 398,516,008,743.56
  5. Step 5: Solve for x
    x = 398,516,008,743.56/690,255.68
  6. Step 6: Final answer
    x = 577,345.50

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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.