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Finding the Fourth Proportional to 525,074.55, 724,612.10 and 310,214.10

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Solution

The fourth proportional to 525,074.55, 724,612.10 and 310,214.10 is: 428,100.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,074.55 : 724,612.10 = 310,214.10 : x
  2. Step 2: Convert to fraction form
    525,074.55/724,612.10 = 310,214.10/x
  3. Step 3: Cross multiply
    525,074.55x = 724,612.10 × 310,214.10
  4. Step 4: Simplify right side
    525,074.55x = 224,784,894,234.27
  5. Step 5: Solve for x
    x = 224,784,894,234.27/525,074.55
  6. Step 6: Final answer
    x = 428,100.91

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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.