Home / 1,369,561.50-1,890,600.24-818,471.67

Finding the Fourth Proportional to 1,369,561.50, 1,890,600.24 and 818,471.67

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Solution

The fourth proportional to 1,369,561.50, 1,890,600.24 and 818,471.67 is: 1,129,852.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,561.50 : 1,890,600.24 = 818,471.67 : x
  2. Step 2: Convert to fraction form
    1,369,561.50/1,890,600.24 = 818,471.67/x
  3. Step 3: Cross multiply
    1,369,561.50x = 1,890,600.24 × 818,471.67
  4. Step 4: Simplify right side
    1,369,561.50x = 1,547,402,735,735.20
  5. Step 5: Solve for x
    x = 1,547,402,735,735.20/1,369,561.50
  6. Step 6: Final answer
    x = 1,129,852.68

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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.