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Finding the Fourth Proportional to 670,491.63, 925,278.45 and 368,685.63

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Solution

The fourth proportional to 670,491.63, 925,278.45 and 368,685.63 is: 508,786.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,491.63 : 925,278.45 = 368,685.63 : x
  2. Step 2: Convert to fraction form
    670,491.63/925,278.45 = 368,685.63/x
  3. Step 3: Cross multiply
    670,491.63x = 925,278.45 × 368,685.63
  4. Step 4: Simplify right side
    670,491.63x = 341,136,868,263.67
  5. Step 5: Solve for x
    x = 341,136,868,263.67/670,491.63
  6. Step 6: Final answer
    x = 508,786.17

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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.