Home / 818,721.70-1,228,082.55-458,522.80

Finding the Fourth Proportional to 818,721.70, 1,228,082.55 and 458,522.80

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Solution

The fourth proportional to 818,721.70, 1,228,082.55 and 458,522.80 is: 687,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,721.70 : 1,228,082.55 = 458,522.80 : x
  2. Step 2: Convert to fraction form
    818,721.70/1,228,082.55 = 458,522.80/x
  3. Step 3: Cross multiply
    818,721.70x = 1,228,082.55 × 458,522.80
  4. Step 4: Simplify right side
    818,721.70x = 563,103,849,457.14
  5. Step 5: Solve for x
    x = 563,103,849,457.14/818,721.70
  6. Step 6: Final answer
    x = 687,784.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.