Home / 1,298,319.48-1,947,297.76-445,377.20

Finding the Fourth Proportional to 1,298,319.48, 1,947,297.76 and 445,377.20

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Solution

The fourth proportional to 1,298,319.48, 1,947,297.76 and 445,377.20 is: 668,003.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,319.48 : 1,947,297.76 = 445,377.20 : x
  2. Step 2: Convert to fraction form
    1,298,319.48/1,947,297.76 = 445,377.20/x
  3. Step 3: Cross multiply
    1,298,319.48x = 1,947,297.76 × 445,377.20
  4. Step 4: Simplify right side
    1,298,319.48x = 867,282,023,915.07
  5. Step 5: Solve for x
    x = 867,282,023,915.07/1,298,319.48
  6. Step 6: Final answer
    x = 668,003.55

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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.