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Finding the Fourth Proportional to 655,667.48, 904,810.98 and 369,186.68

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Solution

The fourth proportional to 655,667.48, 904,810.98 and 369,186.68 is: 509,471.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,667.48 : 904,810.98 = 369,186.68 : x
  2. Step 2: Convert to fraction form
    655,667.48/904,810.98 = 369,186.68/x
  3. Step 3: Cross multiply
    655,667.48x = 904,810.98 × 369,186.68
  4. Step 4: Simplify right side
    655,667.48x = 334,044,161,733.75
  5. Step 5: Solve for x
    x = 334,044,161,733.75/655,667.48
  6. Step 6: Final answer
    x = 509,471.91

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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.