Home / 686,479.68-1,030,078.44-498,492.72

Finding the Fourth Proportional to 686,479.68, 1,030,078.44 and 498,492.72

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Solution

The fourth proportional to 686,479.68, 1,030,078.44 and 498,492.72 is: 747,999.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,479.68 : 1,030,078.44 = 498,492.72 : x
  2. Step 2: Convert to fraction form
    686,479.68/1,030,078.44 = 498,492.72/x
  3. Step 3: Cross multiply
    686,479.68x = 1,030,078.44 × 498,492.72
  4. Step 4: Simplify right side
    686,479.68x = 513,486,603,368.96
  5. Step 5: Solve for x
    x = 513,486,603,368.96/686,479.68
  6. Step 6: Final answer
    x = 747,999.71

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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.