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Finding the Fourth Proportional to 572,814.81, 859,465.22 and 306,506.25

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Solution

The fourth proportional to 572,814.81, 859,465.22 and 306,506.25 is: 459,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,814.81 : 859,465.22 = 306,506.25 : x
  2. Step 2: Convert to fraction form
    572,814.81/859,465.22 = 306,506.25/x
  3. Step 3: Cross multiply
    572,814.81x = 859,465.22 × 306,506.25
  4. Step 4: Simplify right side
    572,814.81x = 263,431,460,055.09
  5. Step 5: Solve for x
    x = 263,431,460,055.09/572,814.81
  6. Step 6: Final answer
    x = 459,889.40

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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.