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Finding the Fourth Proportional to 655,420.92, 903,997.98 and 494,282.76

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Solution

The fourth proportional to 655,420.92, 903,997.98 and 494,282.76 is: 681,746.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,420.92 : 903,997.98 = 494,282.76 : x
  2. Step 2: Convert to fraction form
    655,420.92/903,997.98 = 494,282.76/x
  3. Step 3: Cross multiply
    655,420.92x = 903,997.98 × 494,282.76
  4. Step 4: Simplify right side
    655,420.92x = 446,830,616,588.83
  5. Step 5: Solve for x
    x = 446,830,616,588.83/655,420.92
  6. Step 6: Final answer
    x = 681,746.04

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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.