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Finding the Fourth Proportional to 572,407.40, 858,708.30 and 306,095.60

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Solution

The fourth proportional to 572,407.40, 858,708.30 and 306,095.60 is: 459,195.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,407.40 : 858,708.30 = 306,095.60 : x
  2. Step 2: Convert to fraction form
    572,407.40/858,708.30 = 306,095.60/x
  3. Step 3: Cross multiply
    572,407.40x = 858,708.30 × 306,095.60
  4. Step 4: Simplify right side
    572,407.40x = 262,846,832,313.48
  5. Step 5: Solve for x
    x = 262,846,832,313.48/572,407.40
  6. Step 6: Final answer
    x = 459,195.38

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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.