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Finding the Fourth Proportional to 580,611.40, 869,750.70 and 403,318.60

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Solution

The fourth proportional to 580,611.40, 869,750.70 and 403,318.60 is: 604,167.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,611.40 : 869,750.70 = 403,318.60 : x
  2. Step 2: Convert to fraction form
    580,611.40/869,750.70 = 403,318.60/x
  3. Step 3: Cross multiply
    580,611.40x = 869,750.70 × 403,318.60
  4. Step 4: Simplify right side
    580,611.40x = 350,786,634,673.02
  5. Step 5: Solve for x
    x = 350,786,634,673.02/580,611.40
  6. Step 6: Final answer
    x = 604,167.67

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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.