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Finding the Fourth Proportional to 525,241.46, 724,803.48 and 310,401.52

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Solution

The fourth proportional to 525,241.46, 724,803.48 and 310,401.52 is: 428,336.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,241.46 : 724,803.48 = 310,401.52 : x
  2. Step 2: Convert to fraction form
    525,241.46/724,803.48 = 310,401.52/x
  3. Step 3: Cross multiply
    525,241.46x = 724,803.48 × 310,401.52
  4. Step 4: Simplify right side
    525,241.46x = 224,980,100,081.28
  5. Step 5: Solve for x
    x = 224,980,100,081.28/525,241.46
  6. Step 6: Final answer
    x = 428,336.52

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Double scale
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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.