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Finding the Fourth Proportional to 906,322.77, 1,359,484.16 and 431,568.81

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Solution

The fourth proportional to 906,322.77, 1,359,484.16 and 431,568.81 is: 647,353.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,322.77 : 1,359,484.16 = 431,568.81 : x
  2. Step 2: Convert to fraction form
    906,322.77/1,359,484.16 = 431,568.81/x
  3. Step 3: Cross multiply
    906,322.77x = 1,359,484.16 × 431,568.81
  4. Step 4: Simplify right side
    906,322.77x = 586,710,958,987.21
  5. Step 5: Solve for x
    x = 586,710,958,987.21/906,322.77
  6. Step 6: Final answer
    x = 647,353.22

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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.