Home / 680,459.16-1,019,522.34-480,421.56

Finding the Fourth Proportional to 680,459.16, 1,019,522.34 and 480,421.56

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Solution

The fourth proportional to 680,459.16, 1,019,522.34 and 480,421.56 is: 719,808.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,459.16 : 1,019,522.34 = 480,421.56 : x
  2. Step 2: Convert to fraction form
    680,459.16/1,019,522.34 = 480,421.56/x
  3. Step 3: Cross multiply
    680,459.16x = 1,019,522.34 × 480,421.56
  4. Step 4: Simplify right side
    680,459.16x = 489,800,513,037.65
  5. Step 5: Solve for x
    x = 489,800,513,037.65/680,459.16
  6. Step 6: Final answer
    x = 719,808.83

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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.