Home / 678,814.60-1,018,221.90-573,838.60

Finding the Fourth Proportional to 678,814.60, 1,018,221.90 and 573,838.60

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Solution

The fourth proportional to 678,814.60, 1,018,221.90 and 573,838.60 is: 860,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,814.60 : 1,018,221.90 = 573,838.60 : x
  2. Step 2: Convert to fraction form
    678,814.60/1,018,221.90 = 573,838.60/x
  3. Step 3: Cross multiply
    678,814.60x = 1,018,221.90 × 573,838.60
  4. Step 4: Simplify right side
    678,814.60x = 584,295,029,585.34
  5. Step 5: Solve for x
    x = 584,295,029,585.34/678,814.60
  6. Step 6: Final answer
    x = 860,757.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.