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Finding the Fourth Proportional to 655,087.40, 904,014.76 and 368,601.76

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Solution

The fourth proportional to 655,087.40, 904,014.76 and 368,601.76 is: 508,667.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,087.40 : 904,014.76 = 368,601.76 : x
  2. Step 2: Convert to fraction form
    655,087.40/904,014.76 = 368,601.76/x
  3. Step 3: Cross multiply
    655,087.40x = 904,014.76 × 368,601.76
  4. Step 4: Simplify right side
    655,087.40x = 333,221,431,601.98
  5. Step 5: Solve for x
    x = 333,221,431,601.98/655,087.40
  6. Step 6: Final answer
    x = 508,667.14

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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.