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Finding the Fourth Proportional to 903,468, 1,247,012.40 and 613,570.08

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Solution

The fourth proportional to 903,468, 1,247,012.40 and 613,570.08 is: 846,880.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,468 : 1,247,012.40 = 613,570.08 : x
  2. Step 2: Convert to fraction form
    903,468/1,247,012.40 = 613,570.08/x
  3. Step 3: Cross multiply
    903,468x = 1,247,012.40 × 613,570.08
  4. Step 4: Simplify right side
    903,468x = 765,129,498,028.99
  5. Step 5: Solve for x
    x = 765,129,498,028.99/903,468
  6. Step 6: Final answer
    x = 846,880.57

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1.5x scale

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.