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Finding the Fourth Proportional to 604,978.12, 905,187.07 and 360,916.62

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Solution

The fourth proportional to 604,978.12, 905,187.07 and 360,916.62 is: 540,014.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,978.12 : 905,187.07 = 360,916.62 : x
  2. Step 2: Convert to fraction form
    604,978.12/905,187.07 = 360,916.62/x
  3. Step 3: Cross multiply
    604,978.12x = 905,187.07 × 360,916.62
  4. Step 4: Simplify right side
    604,978.12x = 326,697,057,772.10
  5. Step 5: Solve for x
    x = 326,697,057,772.10/604,978.12
  6. Step 6: Final answer
    x = 540,014.67

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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.