Home / 1,307,974.60-1,962,026.70-678,118.60

Finding the Fourth Proportional to 1,307,974.60, 1,962,026.70 and 678,118.60

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Solution

The fourth proportional to 1,307,974.60, 1,962,026.70 and 678,118.60 is: 1,017,211.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,974.60 : 1,962,026.70 = 678,118.60 : x
  2. Step 2: Convert to fraction form
    1,307,974.60/1,962,026.70 = 678,118.60/x
  3. Step 3: Cross multiply
    1,307,974.60x = 1,962,026.70 × 678,118.60
  4. Step 4: Simplify right side
    1,307,974.60x = 1,330,486,798,966.62
  5. Step 5: Solve for x
    x = 1,330,486,798,966.62/1,307,974.60
  6. Step 6: Final answer
    x = 1,017,211.50

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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.