Home / 690,819.14-1,036,464.06-421,486.50

Finding the Fourth Proportional to 690,819.14, 1,036,464.06 and 421,486.50

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Solution

The fourth proportional to 690,819.14, 1,036,464.06 and 421,486.50 is: 632,373.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,819.14 : 1,036,464.06 = 421,486.50 : x
  2. Step 2: Convert to fraction form
    690,819.14/1,036,464.06 = 421,486.50/x
  3. Step 3: Cross multiply
    690,819.14x = 1,036,464.06 × 421,486.50
  4. Step 4: Simplify right side
    690,819.14x = 436,855,609,025.19
  5. Step 5: Solve for x
    x = 436,855,609,025.19/690,819.14
  6. Step 6: Final answer
    x = 632,373.34

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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.