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Finding the Fourth Proportional to 681,696.47, 940,735.80 and 371,598.32

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Solution

The fourth proportional to 681,696.47, 940,735.80 and 371,598.32 is: 512,802.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,696.47 : 940,735.80 = 371,598.32 : x
  2. Step 2: Convert to fraction form
    681,696.47/940,735.80 = 371,598.32/x
  3. Step 3: Cross multiply
    681,696.47x = 940,735.80 × 371,598.32
  4. Step 4: Simplify right side
    681,696.47x = 349,575,838,140.18
  5. Step 5: Solve for x
    x = 349,575,838,140.18/681,696.47
  6. Step 6: Final answer
    x = 512,802.77

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1.5x scale

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.