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Finding the Fourth Proportional to 655,574.88, 904,749.03 and 369,150.78

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Solution

The fourth proportional to 655,574.88, 904,749.03 and 369,150.78 is: 509,459.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,574.88 : 904,749.03 = 369,150.78 : x
  2. Step 2: Convert to fraction form
    655,574.88/904,749.03 = 369,150.78/x
  3. Step 3: Cross multiply
    655,574.88x = 904,749.03 × 369,150.78
  4. Step 4: Simplify right side
    655,574.88x = 333,988,810,128.74
  5. Step 5: Solve for x
    x = 333,988,810,128.74/655,574.88
  6. Step 6: Final answer
    x = 509,459.44

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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.