Home / 525,442.22-723,582.99-456,499.78

Finding the Fourth Proportional to 525,442.22, 723,582.99 and 456,499.78

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Solution

The fourth proportional to 525,442.22, 723,582.99 and 456,499.78 is: 628,642.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,442.22 : 723,582.99 = 456,499.78 : x
  2. Step 2: Convert to fraction form
    525,442.22/723,582.99 = 456,499.78/x
  3. Step 3: Cross multiply
    525,442.22x = 723,582.99 × 456,499.78
  4. Step 4: Simplify right side
    525,442.22x = 330,315,473,937.79
  5. Step 5: Solve for x
    x = 330,315,473,937.79/525,442.22
  6. Step 6: Final answer
    x = 628,642.81

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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.