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Finding the Fourth Proportional to 655,521.72, 904,617.36 and 369,042.36

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Solution

The fourth proportional to 655,521.72, 904,617.36 and 369,042.36 is: 509,276.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,521.72 : 904,617.36 = 369,042.36 : x
  2. Step 2: Convert to fraction form
    655,521.72/904,617.36 = 369,042.36/x
  3. Step 3: Cross multiply
    655,521.72x = 904,617.36 × 369,042.36
  4. Step 4: Simplify right side
    655,521.72x = 333,842,125,431.37
  5. Step 5: Solve for x
    x = 333,842,125,431.37/655,521.72
  6. Step 6: Final answer
    x = 509,276.99

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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.