Home / 668,121.48-1,000,845.72-401,735.16

Finding the Fourth Proportional to 668,121.48, 1,000,845.72 and 401,735.16

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Solution

The fourth proportional to 668,121.48, 1,000,845.72 and 401,735.16 is: 601,799.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,121.48 : 1,000,845.72 = 401,735.16 : x
  2. Step 2: Convert to fraction form
    668,121.48/1,000,845.72 = 401,735.16/x
  3. Step 3: Cross multiply
    668,121.48x = 1,000,845.72 × 401,735.16
  4. Step 4: Simplify right side
    668,121.48x = 402,074,915,459.52
  5. Step 5: Solve for x
    x = 402,074,915,459.52/668,121.48
  6. Step 6: Final answer
    x = 601,799.12

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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.