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Finding the Fourth Proportional to 572,406.90, 858,707.55 and 306,095.10

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Solution

The fourth proportional to 572,406.90, 858,707.55 and 306,095.10 is: 459,194.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,406.90 : 858,707.55 = 306,095.10 : x
  2. Step 2: Convert to fraction form
    572,406.90/858,707.55 = 306,095.10/x
  3. Step 3: Cross multiply
    572,406.90x = 858,707.55 × 306,095.10
  4. Step 4: Simplify right side
    572,406.90x = 262,846,173,388.01
  5. Step 5: Solve for x
    x = 262,846,173,388.01/572,406.90
  6. Step 6: Final answer
    x = 459,194.63

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1.5x scale

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.