Home / 1,294,695.24-1,786,889.94-778,970.40

Finding the Fourth Proportional to 1,294,695.24, 1,786,889.94 and 778,970.40

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Solution

The fourth proportional to 1,294,695.24, 1,786,889.94 and 778,970.40 is: 1,075,105.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,695.24 : 1,786,889.94 = 778,970.40 : x
  2. Step 2: Convert to fraction form
    1,294,695.24/1,786,889.94 = 778,970.40/x
  3. Step 3: Cross multiply
    1,294,695.24x = 1,786,889.94 × 778,970.40
  4. Step 4: Simplify right side
    1,294,695.24x = 1,391,934,371,317.78
  5. Step 5: Solve for x
    x = 1,391,934,371,317.78/1,294,695.24
  6. Step 6: Final answer
    x = 1,075,105.81

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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.