Home / 776,448.03-1,071,220.96-449,582.65

Finding the Fourth Proportional to 776,448.03, 1,071,220.96 and 449,582.65

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Solution

The fourth proportional to 776,448.03, 1,071,220.96 and 449,582.65 is: 620,263.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,448.03 : 1,071,220.96 = 449,582.65 : x
  2. Step 2: Convert to fraction form
    776,448.03/1,071,220.96 = 449,582.65/x
  3. Step 3: Cross multiply
    776,448.03x = 1,071,220.96 × 449,582.65
  4. Step 4: Simplify right side
    776,448.03x = 481,602,357,932.34
  5. Step 5: Solve for x
    x = 481,602,357,932.34/776,448.03
  6. Step 6: Final answer
    x = 620,263.48

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Double scale
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1.5x scale

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.