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Finding the Fourth Proportional to 570,419.23, 787,222.26 and 325,409.38

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Solution

The fourth proportional to 570,419.23, 787,222.26 and 325,409.38 is: 449,089.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,419.23 : 787,222.26 = 325,409.38 : x
  2. Step 2: Convert to fraction form
    570,419.23/787,222.26 = 325,409.38/x
  3. Step 3: Cross multiply
    570,419.23x = 787,222.26 × 325,409.38
  4. Step 4: Simplify right side
    570,419.23x = 256,169,507,312.54
  5. Step 5: Solve for x
    x = 256,169,507,312.54/570,419.23
  6. Step 6: Final answer
    x = 449,089.89

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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.