Home / 889,256.40-1,333,884.60-390,620.40

Finding the Fourth Proportional to 889,256.40, 1,333,884.60 and 390,620.40

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Solution

The fourth proportional to 889,256.40, 1,333,884.60 and 390,620.40 is: 585,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,256.40 : 1,333,884.60 = 390,620.40 : x
  2. Step 2: Convert to fraction form
    889,256.40/1,333,884.60 = 390,620.40/x
  3. Step 3: Cross multiply
    889,256.40x = 1,333,884.60 × 390,620.40
  4. Step 4: Simplify right side
    889,256.40x = 521,042,536,005.84
  5. Step 5: Solve for x
    x = 521,042,536,005.84/889,256.40
  6. Step 6: Final answer
    x = 585,930.60

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Similar ratio
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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.