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Finding the Fourth Proportional to 648,407.66, 894,951.88 and 380,222.06

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Solution

The fourth proportional to 648,407.66, 894,951.88 and 380,222.06 is: 524,794.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,407.66 : 894,951.88 = 380,222.06 : x
  2. Step 2: Convert to fraction form
    648,407.66/894,951.88 = 380,222.06/x
  3. Step 3: Cross multiply
    648,407.66x = 894,951.88 × 380,222.06
  4. Step 4: Simplify right side
    648,407.66x = 340,280,447,414.47
  5. Step 5: Solve for x
    x = 340,280,447,414.47/648,407.66
  6. Step 6: Final answer
    x = 524,794.00

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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.