Home / 1,688,117.45-2,329,229.67-999,447.35

Finding the Fourth Proportional to 1,688,117.45, 2,329,229.67 and 999,447.35

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Solution

The fourth proportional to 1,688,117.45, 2,329,229.67 and 999,447.35 is: 1,379,016.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,117.45 : 2,329,229.67 = 999,447.35 : x
  2. Step 2: Convert to fraction form
    1,688,117.45/2,329,229.67 = 999,447.35/x
  3. Step 3: Cross multiply
    1,688,117.45x = 2,329,229.67 × 999,447.35
  4. Step 4: Simplify right side
    1,688,117.45x = 2,327,942,421,222.87
  5. Step 5: Solve for x
    x = 2,327,942,421,222.87/1,688,117.45
  6. Step 6: Final answer
    x = 1,379,016.86

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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.