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Finding the Fourth Proportional to 660,000.68, 910,801.32 and 358,194.68

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Solution

The fourth proportional to 660,000.68, 910,801.32 and 358,194.68 is: 494,308.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,000.68 : 910,801.32 = 358,194.68 : x
  2. Step 2: Convert to fraction form
    660,000.68/910,801.32 = 358,194.68/x
  3. Step 3: Cross multiply
    660,000.68x = 910,801.32 × 358,194.68
  4. Step 4: Simplify right side
    660,000.68x = 326,244,187,360.98
  5. Step 5: Solve for x
    x = 326,244,187,360.98/660,000.68
  6. Step 6: Final answer
    x = 494,308.87

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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.