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Finding the Fourth Proportional to 655,070.58, 903,995.53 and 368,590.69

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Solution

The fourth proportional to 655,070.58, 903,995.53 and 368,590.69 is: 508,654.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,070.58 : 903,995.53 = 368,590.69 : x
  2. Step 2: Convert to fraction form
    655,070.58/903,995.53 = 368,590.69/x
  3. Step 3: Cross multiply
    655,070.58x = 903,995.53 × 368,590.69
  4. Step 4: Simplify right side
    655,070.58x = 333,204,336,159.62
  5. Step 5: Solve for x
    x = 333,204,336,159.62/655,070.58
  6. Step 6: Final answer
    x = 508,654.10

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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.