Home / 603,669.40-904,467.30-287,445.40

Finding the Fourth Proportional to 603,669.40, 904,467.30 and 287,445.40

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Solution

The fourth proportional to 603,669.40, 904,467.30 and 287,445.40 is: 430,674.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,669.40 : 904,467.30 = 287,445.40 : x
  2. Step 2: Convert to fraction form
    603,669.40/904,467.30 = 287,445.40/x
  3. Step 3: Cross multiply
    603,669.40x = 904,467.30 × 287,445.40
  4. Step 4: Simplify right side
    603,669.40x = 259,984,964,835.42
  5. Step 5: Solve for x
    x = 259,984,964,835.42/603,669.40
  6. Step 6: Final answer
    x = 430,674.41

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1.5x scale

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.