Home / 748,078.40-1,032,334.26-421,392.44

Finding the Fourth Proportional to 748,078.40, 1,032,334.26 and 421,392.44

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Solution

The fourth proportional to 748,078.40, 1,032,334.26 and 421,392.44 is: 581,513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,078.40 : 1,032,334.26 = 421,392.44 : x
  2. Step 2: Convert to fraction form
    748,078.40/1,032,334.26 = 421,392.44/x
  3. Step 3: Cross multiply
    748,078.40x = 1,032,334.26 × 421,392.44
  4. Step 4: Simplify right side
    748,078.40x = 435,017,852,716.99
  5. Step 5: Solve for x
    x = 435,017,852,716.99/748,078.40
  6. Step 6: Final answer
    x = 581,513.72

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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.