Home / 679,482.40-1,019,223.60-638,010.40

Finding the Fourth Proportional to 679,482.40, 1,019,223.60 and 638,010.40

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Solution

The fourth proportional to 679,482.40, 1,019,223.60 and 638,010.40 is: 957,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,482.40 : 1,019,223.60 = 638,010.40 : x
  2. Step 2: Convert to fraction form
    679,482.40/1,019,223.60 = 638,010.40/x
  3. Step 3: Cross multiply
    679,482.40x = 1,019,223.60 × 638,010.40
  4. Step 4: Simplify right side
    679,482.40x = 650,275,256,725.44
  5. Step 5: Solve for x
    x = 650,275,256,725.44/679,482.40
  6. Step 6: Final answer
    x = 957,015.60

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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.