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Finding the Fourth Proportional to 404,303.40, 606,455.10 and 104,781.60

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Solution

The fourth proportional to 404,303.40, 606,455.10 and 104,781.60 is: 157,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,303.40 : 606,455.10 = 104,781.60 : x
  2. Step 2: Convert to fraction form
    404,303.40/606,455.10 = 104,781.60/x
  3. Step 3: Cross multiply
    404,303.40x = 606,455.10 × 104,781.60
  4. Step 4: Simplify right side
    404,303.40x = 63,545,335,706.16
  5. Step 5: Solve for x
    x = 63,545,335,706.16/404,303.40
  6. Step 6: Final answer
    x = 157,172.40

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1.5x scale

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.