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Finding the Fourth Proportional to 509,050.96, 702,841.80 and 318,150.16

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Solution

The fourth proportional to 509,050.96, 702,841.80 and 318,150.16 is: 439,266.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,050.96 : 702,841.80 = 318,150.16 : x
  2. Step 2: Convert to fraction form
    509,050.96/702,841.80 = 318,150.16/x
  3. Step 3: Cross multiply
    509,050.96x = 702,841.80 × 318,150.16
  4. Step 4: Simplify right side
    509,050.96x = 223,609,231,124.69
  5. Step 5: Solve for x
    x = 223,609,231,124.69/509,050.96
  6. Step 6: Final answer
    x = 439,266.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.