Home / 1,393,362.02-1,922,685.85-781,388.85

Finding the Fourth Proportional to 1,393,362.02, 1,922,685.85 and 781,388.85

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Solution

The fourth proportional to 1,393,362.02, 1,922,685.85 and 781,388.85 is: 1,078,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,362.02 : 1,922,685.85 = 781,388.85 : x
  2. Step 2: Convert to fraction form
    1,393,362.02/1,922,685.85 = 781,388.85/x
  3. Step 3: Cross multiply
    1,393,362.02x = 1,922,685.85 × 781,388.85
  4. Step 4: Simplify right side
    1,393,362.02x = 1,502,365,285,242.77
  5. Step 5: Solve for x
    x = 1,502,365,285,242.77/1,393,362.02
  6. Step 6: Final answer
    x = 1,078,230.40

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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.