Home / 810,590.51-1,118,672.79-448,006.58

Finding the Fourth Proportional to 810,590.51, 1,118,672.79 and 448,006.58

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Solution

The fourth proportional to 810,590.51, 1,118,672.79 and 448,006.58 is: 618,281.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,590.51 : 1,118,672.79 = 448,006.58 : x
  2. Step 2: Convert to fraction form
    810,590.51/1,118,672.79 = 448,006.58/x
  3. Step 3: Cross multiply
    810,590.51x = 1,118,672.79 × 448,006.58
  4. Step 4: Simplify right side
    810,590.51x = 501,172,770,786.96
  5. Step 5: Solve for x
    x = 501,172,770,786.96/810,590.51
  6. Step 6: Final answer
    x = 618,281.07

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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.