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Finding the Fourth Proportional to 901,465, 1,351,987.59 and 422,023.57

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Solution

The fourth proportional to 901,465, 1,351,987.59 and 422,023.57 is: 632,937.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,465 : 1,351,987.59 = 422,023.57 : x
  2. Step 2: Convert to fraction form
    901,465/1,351,987.59 = 422,023.57/x
  3. Step 3: Cross multiply
    901,465x = 1,351,987.59 × 422,023.57
  4. Step 4: Simplify right side
    901,465x = 570,570,629,327.50
  5. Step 5: Solve for x
    x = 570,570,629,327.50/901,465
  6. Step 6: Final answer
    x = 632,937.08

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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.