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Finding the Fourth Proportional to 655,724.84, 904,891.38 and 369,248.36

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Solution

The fourth proportional to 655,724.84, 904,891.38 and 369,248.36 is: 509,557.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,724.84 : 904,891.38 = 369,248.36 : x
  2. Step 2: Convert to fraction form
    655,724.84/904,891.38 = 369,248.36/x
  3. Step 3: Cross multiply
    655,724.84x = 904,891.38 × 369,248.36
  4. Step 4: Simplify right side
    655,724.84x = 334,129,658,043.14
  5. Step 5: Solve for x
    x = 334,129,658,043.14/655,724.84
  6. Step 6: Final answer
    x = 509,557.73

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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.