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Finding the Fourth Proportional to 655,479.18, 904,647.48 and 369,055.08

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Solution

The fourth proportional to 655,479.18, 904,647.48 and 369,055.08 is: 509,344.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,479.18 : 904,647.48 = 369,055.08 : x
  2. Step 2: Convert to fraction form
    655,479.18/904,647.48 = 369,055.08/x
  3. Step 3: Cross multiply
    655,479.18x = 904,647.48 × 369,055.08
  4. Step 4: Simplify right side
    655,479.18x = 333,864,741,734.69
  5. Step 5: Solve for x
    x = 333,864,741,734.69/655,479.18
  6. Step 6: Final answer
    x = 509,344.54

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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.