Home / 603,539.40-904,272.30-287,315.40

Finding the Fourth Proportional to 603,539.40, 904,272.30 and 287,315.40

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Solution

The fourth proportional to 603,539.40, 904,272.30 and 287,315.40 is: 430,479.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,539.40 : 904,272.30 = 287,315.40 : x
  2. Step 2: Convert to fraction form
    603,539.40/904,272.30 = 287,315.40/x
  3. Step 3: Cross multiply
    603,539.40x = 904,272.30 × 287,315.40
  4. Step 4: Simplify right side
    603,539.40x = 259,811,357,583.42
  5. Step 5: Solve for x
    x = 259,811,357,583.42/603,539.40
  6. Step 6: Final answer
    x = 430,479.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.