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Finding the Fourth Proportional to 655,416.48, 904,464.72 and 368,935.68

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Solution

The fourth proportional to 655,416.48, 904,464.72 and 368,935.68 is: 509,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,416.48 : 904,464.72 = 368,935.68 : x
  2. Step 2: Convert to fraction form
    655,416.48/904,464.72 = 368,935.68/x
  3. Step 3: Cross multiply
    655,416.48x = 904,464.72 × 368,935.68
  4. Step 4: Simplify right side
    655,416.48x = 333,689,306,509.21
  5. Step 5: Solve for x
    x = 333,689,306,509.21/655,416.48
  6. Step 6: Final answer
    x = 509,125.60

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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.