Home / 685,114.03-945,393.32-409,417.18

Finding the Fourth Proportional to 685,114.03, 945,393.32 and 409,417.18

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Solution

The fourth proportional to 685,114.03, 945,393.32 and 409,417.18 is: 564,957.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,114.03 : 945,393.32 = 409,417.18 : x
  2. Step 2: Convert to fraction form
    685,114.03/945,393.32 = 409,417.18/x
  3. Step 3: Cross multiply
    685,114.03x = 945,393.32 × 409,417.18
  4. Step 4: Simplify right side
    685,114.03x = 387,060,271,043.14
  5. Step 5: Solve for x
    x = 387,060,271,043.14/685,114.03
  6. Step 6: Final answer
    x = 564,957.44

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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.