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Finding the Fourth Proportional to 655,561.23, 904,674.25 and 383,680.88

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Solution

The fourth proportional to 655,561.23, 904,674.25 and 383,680.88 is: 529,479.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,561.23 : 904,674.25 = 383,680.88 : x
  2. Step 2: Convert to fraction form
    655,561.23/904,674.25 = 383,680.88/x
  3. Step 3: Cross multiply
    655,561.23x = 904,674.25 × 383,680.88
  4. Step 4: Simplify right side
    655,561.23x = 347,106,212,353.34
  5. Step 5: Solve for x
    x = 347,106,212,353.34/655,561.23
  6. Step 6: Final answer
    x = 529,479.47

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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.