Home / 1,331,792-1,997,688-397,904

Finding the Fourth Proportional to 1,331,792, 1,997,688 and 397,904

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Solution

The fourth proportional to 1,331,792, 1,997,688 and 397,904 is: 596,856

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,792 : 1,997,688 = 397,904 : x
  2. Step 2: Convert to fraction form
    1,331,792/1,997,688 = 397,904/x
  3. Step 3: Cross multiply
    1,331,792x = 1,997,688 × 397,904
  4. Step 4: Simplify right side
    1,331,792x = 794,888,045,952
  5. Step 5: Solve for x
    x = 794,888,045,952/1,331,792
  6. Step 6: Final answer
    x = 596,856

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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.