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Finding the Fourth Proportional to 575,728.20, 863,333.10 and 260,022.60

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Solution

The fourth proportional to 575,728.20, 863,333.10 and 260,022.60 is: 389,916.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,728.20 : 863,333.10 = 260,022.60 : x
  2. Step 2: Convert to fraction form
    575,728.20/863,333.10 = 260,022.60/x
  3. Step 3: Cross multiply
    575,728.20x = 863,333.10 × 260,022.60
  4. Step 4: Simplify right side
    575,728.20x = 224,486,117,328.06
  5. Step 5: Solve for x
    x = 224,486,117,328.06/575,728.20
  6. Step 6: Final answer
    x = 389,916.83

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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.