Home / 1,215,489.60-1,824,400.80-617,126.40

Finding the Fourth Proportional to 1,215,489.60, 1,824,400.80 and 617,126.40

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Solution

The fourth proportional to 1,215,489.60, 1,824,400.80 and 617,126.40 is: 926,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,489.60 : 1,824,400.80 = 617,126.40 : x
  2. Step 2: Convert to fraction form
    1,215,489.60/1,824,400.80 = 617,126.40/x
  3. Step 3: Cross multiply
    1,215,489.60x = 1,824,400.80 × 617,126.40
  4. Step 4: Simplify right side
    1,215,489.60x = 1,125,885,897,861.12
  5. Step 5: Solve for x
    x = 1,125,885,897,861.12/1,215,489.60
  6. Step 6: Final answer
    x = 926,281.80

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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.