Home / 475,622.40-712,396.80-423,091.20

Finding the Fourth Proportional to 475,622.40, 712,396.80 and 423,091.20

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Solution

The fourth proportional to 475,622.40, 712,396.80 and 423,091.20 is: 633,714.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,622.40 : 712,396.80 = 423,091.20 : x
  2. Step 2: Convert to fraction form
    475,622.40/712,396.80 = 423,091.20/x
  3. Step 3: Cross multiply
    475,622.40x = 712,396.80 × 423,091.20
  4. Step 4: Simplify right side
    475,622.40x = 301,408,816,988.16
  5. Step 5: Solve for x
    x = 301,408,816,988.16/475,622.40
  6. Step 6: Final answer
    x = 633,714.51

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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.