Home / 847,226.40-1,270,839.60-427,322.40

Finding the Fourth Proportional to 847,226.40, 1,270,839.60 and 427,322.40

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Solution

The fourth proportional to 847,226.40, 1,270,839.60 and 427,322.40 is: 640,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,226.40 : 1,270,839.60 = 427,322.40 : x
  2. Step 2: Convert to fraction form
    847,226.40/1,270,839.60 = 427,322.40/x
  3. Step 3: Cross multiply
    847,226.40x = 1,270,839.60 × 427,322.40
  4. Step 4: Simplify right side
    847,226.40x = 543,058,227,887.04
  5. Step 5: Solve for x
    x = 543,058,227,887.04/847,226.40
  6. Step 6: Final answer
    x = 640,983.60

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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.