Home / 889,603.40-1,334,145.90-320,918.60

Finding the Fourth Proportional to 889,603.40, 1,334,145.90 and 320,918.60

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Solution

The fourth proportional to 889,603.40, 1,334,145.90 and 320,918.60 is: 481,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,603.40 : 1,334,145.90 = 320,918.60 : x
  2. Step 2: Convert to fraction form
    889,603.40/1,334,145.90 = 320,918.60/x
  3. Step 3: Cross multiply
    889,603.40x = 1,334,145.90 × 320,918.60
  4. Step 4: Simplify right side
    889,603.40x = 428,152,234,423.74
  5. Step 5: Solve for x
    x = 428,152,234,423.74/889,603.40
  6. Step 6: Final answer
    x = 481,284.40

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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.