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Finding the Fourth Proportional to 525,598.80, 725,352.68 and 321,585.84

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Solution

The fourth proportional to 525,598.80, 725,352.68 and 321,585.84 is: 443,804.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,598.80 : 725,352.68 = 321,585.84 : x
  2. Step 2: Convert to fraction form
    525,598.80/725,352.68 = 321,585.84/x
  3. Step 3: Cross multiply
    525,598.80x = 725,352.68 × 321,585.84
  4. Step 4: Simplify right side
    525,598.80x = 233,263,150,894.05
  5. Step 5: Solve for x
    x = 233,263,150,894.05/525,598.80
  6. Step 6: Final answer
    x = 443,804.57

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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.