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Finding the Fourth Proportional to 655,474.89, 904,572.12 and 369,005.03

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Solution

The fourth proportional to 655,474.89, 904,572.12 and 369,005.03 is: 509,236.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,474.89 : 904,572.12 = 369,005.03 : x
  2. Step 2: Convert to fraction form
    655,474.89/904,572.12 = 369,005.03/x
  3. Step 3: Cross multiply
    655,474.89x = 904,572.12 × 369,005.03
  4. Step 4: Simplify right side
    655,474.89x = 333,791,662,277.76
  5. Step 5: Solve for x
    x = 333,791,662,277.76/655,474.89
  6. Step 6: Final answer
    x = 509,236.38

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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.