Home / 1,078,634.67-1,618,570.21-438,820.33

Finding the Fourth Proportional to 1,078,634.67, 1,618,570.21 and 438,820.33

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Solution

The fourth proportional to 1,078,634.67, 1,618,570.21 and 438,820.33 is: 658,482.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,634.67 : 1,618,570.21 = 438,820.33 : x
  2. Step 2: Convert to fraction form
    1,078,634.67/1,618,570.21 = 438,820.33/x
  3. Step 3: Cross multiply
    1,078,634.67x = 1,618,570.21 × 438,820.33
  4. Step 4: Simplify right side
    1,078,634.67x = 710,261,513,680.37
  5. Step 5: Solve for x
    x = 710,261,513,680.37/1,078,634.67
  6. Step 6: Final answer
    x = 658,482.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.