Home / 1,423,285.25-1,964,182.68-778,705.47

Finding the Fourth Proportional to 1,423,285.25, 1,964,182.68 and 778,705.47

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Solution

The fourth proportional to 1,423,285.25, 1,964,182.68 and 778,705.47 is: 1,074,640.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,285.25 : 1,964,182.68 = 778,705.47 : x
  2. Step 2: Convert to fraction form
    1,423,285.25/1,964,182.68 = 778,705.47/x
  3. Step 3: Cross multiply
    1,423,285.25x = 1,964,182.68 × 778,705.47
  4. Step 4: Simplify right side
    1,423,285.25x = 1,529,519,796,995.26
  5. Step 5: Solve for x
    x = 1,529,519,796,995.26/1,423,285.25
  6. Step 6: Final answer
    x = 1,074,640.38

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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.