Home / 1,409,307.39-2,113,695.41-398,421.32

Finding the Fourth Proportional to 1,409,307.39, 2,113,695.41 and 398,421.32

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Solution

The fourth proportional to 1,409,307.39, 2,113,695.41 and 398,421.32 is: 597,556.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,307.39 : 2,113,695.41 = 398,421.32 : x
  2. Step 2: Convert to fraction form
    1,409,307.39/2,113,695.41 = 398,421.32/x
  3. Step 3: Cross multiply
    1,409,307.39x = 2,113,695.41 × 398,421.32
  4. Step 4: Simplify right side
    1,409,307.39x = 842,141,302,769.56
  5. Step 5: Solve for x
    x = 842,141,302,769.56/1,409,307.39
  6. Step 6: Final answer
    x = 597,556.86

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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.