Home / 1,355,117.26-1,870,064.50-743,275

Finding the Fourth Proportional to 1,355,117.26, 1,870,064.50 and 743,275

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Solution

The fourth proportional to 1,355,117.26, 1,870,064.50 and 743,275 is: 1,025,720.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,117.26 : 1,870,064.50 = 743,275 : x
  2. Step 2: Convert to fraction form
    1,355,117.26/1,870,064.50 = 743,275/x
  3. Step 3: Cross multiply
    1,355,117.26x = 1,870,064.50 × 743,275
  4. Step 4: Simplify right side
    1,355,117.26x = 1,389,972,191,237.50
  5. Step 5: Solve for x
    x = 1,389,972,191,237.50/1,355,117.26
  6. Step 6: Final answer
    x = 1,025,720.97

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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.