Home / 1,297,358.72-1,946,223.81-398,875.90

Finding the Fourth Proportional to 1,297,358.72, 1,946,223.81 and 398,875.90

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Solution

The fourth proportional to 1,297,358.72, 1,946,223.81 and 398,875.90 is: 598,370.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,358.72 : 1,946,223.81 = 398,875.90 : x
  2. Step 2: Convert to fraction form
    1,297,358.72/1,946,223.81 = 398,875.90/x
  3. Step 3: Cross multiply
    1,297,358.72x = 1,946,223.81 × 398,875.90
  4. Step 4: Simplify right side
    1,297,358.72x = 776,301,773,815.18
  5. Step 5: Solve for x
    x = 776,301,773,815.18/1,297,358.72
  6. Step 6: Final answer
    x = 598,370.95

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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.