Home / 525,084.94-724,401.48-389,452.60

Finding the Fourth Proportional to 525,084.94, 724,401.48 and 389,452.60

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Solution

The fourth proportional to 525,084.94, 724,401.48 and 389,452.60 is: 537,284.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,084.94 : 724,401.48 = 389,452.60 : x
  2. Step 2: Convert to fraction form
    525,084.94/724,401.48 = 389,452.60/x
  3. Step 3: Cross multiply
    525,084.94x = 724,401.48 × 389,452.60
  4. Step 4: Simplify right side
    525,084.94x = 282,120,039,829.85
  5. Step 5: Solve for x
    x = 282,120,039,829.85/525,084.94
  6. Step 6: Final answer
    x = 537,284.58

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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.