Home / 745,298.42-1,118,202.77-318,658.46

Finding the Fourth Proportional to 745,298.42, 1,118,202.77 and 318,658.46

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Solution

The fourth proportional to 745,298.42, 1,118,202.77 and 318,658.46 is: 478,096.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,298.42 : 1,118,202.77 = 318,658.46 : x
  2. Step 2: Convert to fraction form
    745,298.42/1,118,202.77 = 318,658.46/x
  3. Step 3: Cross multiply
    745,298.42x = 1,118,202.77 × 318,658.46
  4. Step 4: Simplify right side
    745,298.42x = 356,324,767,861.57
  5. Step 5: Solve for x
    x = 356,324,767,861.57/745,298.42
  6. Step 6: Final answer
    x = 478,096.77

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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.