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Finding the Fourth Proportional to 655,522.72, 904,618.74 and 369,043.36

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Solution

The fourth proportional to 655,522.72, 904,618.74 and 369,043.36 is: 509,278.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,522.72 : 904,618.74 = 369,043.36 : x
  2. Step 2: Convert to fraction form
    655,522.72/904,618.74 = 369,043.36/x
  3. Step 3: Cross multiply
    655,522.72x = 904,618.74 × 369,043.36
  4. Step 4: Simplify right side
    655,522.72x = 333,843,539,328.57
  5. Step 5: Solve for x
    x = 333,843,539,328.57/655,522.72
  6. Step 6: Final answer
    x = 509,278.37

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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.