Home / 1,297,437.12-1,946,341.92-398,954.40

Finding the Fourth Proportional to 1,297,437.12, 1,946,341.92 and 398,954.40

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Solution

The fourth proportional to 1,297,437.12, 1,946,341.92 and 398,954.40 is: 598,488.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,437.12 : 1,946,341.92 = 398,954.40 : x
  2. Step 2: Convert to fraction form
    1,297,437.12/1,946,341.92 = 398,954.40/x
  3. Step 3: Cross multiply
    1,297,437.12x = 1,946,341.92 × 398,954.40
  4. Step 4: Simplify right side
    1,297,437.12x = 776,501,672,888.45
  5. Step 5: Solve for x
    x = 776,501,672,888.45/1,297,437.12
  6. Step 6: Final answer
    x = 598,488.87

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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.