Home / 669,051.45-922,871.03-396,926.69

Finding the Fourth Proportional to 669,051.45, 922,871.03 and 396,926.69

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Solution

The fourth proportional to 669,051.45, 922,871.03 and 396,926.69 is: 547,509.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,051.45 : 922,871.03 = 396,926.69 : x
  2. Step 2: Convert to fraction form
    669,051.45/922,871.03 = 396,926.69/x
  3. Step 3: Cross multiply
    669,051.45x = 922,871.03 × 396,926.69
  4. Step 4: Simplify right side
    669,051.45x = 366,312,136,635.80
  5. Step 5: Solve for x
    x = 366,312,136,635.80/669,051.45
  6. Step 6: Final answer
    x = 547,509.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.