Home / 1,387,569.74-1,915,436.48-843,880.16

Finding the Fourth Proportional to 1,387,569.74, 1,915,436.48 and 843,880.16

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Solution

The fourth proportional to 1,387,569.74, 1,915,436.48 and 843,880.16 is: 1,164,913.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,569.74 : 1,915,436.48 = 843,880.16 : x
  2. Step 2: Convert to fraction form
    1,387,569.74/1,915,436.48 = 843,880.16/x
  3. Step 3: Cross multiply
    1,387,569.74x = 1,915,436.48 × 843,880.16
  4. Step 4: Simplify right side
    1,387,569.74x = 1,616,398,838,992.84
  5. Step 5: Solve for x
    x = 1,616,398,838,992.84/1,387,569.74
  6. Step 6: Final answer
    x = 1,164,913.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.