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Finding the Fourth Proportional to 655,494.12, 904,581 and 369,106.74

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Solution

The fourth proportional to 655,494.12, 904,581 and 369,106.74 is: 509,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,494.12 : 904,581 = 369,106.74 : x
  2. Step 2: Convert to fraction form
    655,494.12/904,581 = 369,106.74/x
  3. Step 3: Cross multiply
    655,494.12x = 904,581 × 369,106.74
  4. Step 4: Simplify right side
    655,494.12x = 333,886,943,975.94
  5. Step 5: Solve for x
    x = 333,886,943,975.94/655,494.12
  6. Step 6: Final answer
    x = 509,366.80

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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.