Home / 890,209.81-1,228,431.41-567,885.30

Finding the Fourth Proportional to 890,209.81, 1,228,431.41 and 567,885.30

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Solution

The fourth proportional to 890,209.81, 1,228,431.41 and 567,885.30 is: 783,644.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,209.81 : 1,228,431.41 = 567,885.30 : x
  2. Step 2: Convert to fraction form
    890,209.81/1,228,431.41 = 567,885.30/x
  3. Step 3: Cross multiply
    890,209.81x = 1,228,431.41 × 567,885.30
  4. Step 4: Simplify right side
    890,209.81x = 697,608,144,047.15
  5. Step 5: Solve for x
    x = 697,608,144,047.15/890,209.81
  6. Step 6: Final answer
    x = 783,644.64

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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.