Home / 2,830,122.79-4,245,478.65-780,783.44

Finding the Fourth Proportional to 2,830,122.79, 4,245,478.65 and 780,783.44

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Solution

The fourth proportional to 2,830,122.79, 4,245,478.65 and 780,783.44 is: 1,171,256.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830,122.79 : 4,245,478.65 = 780,783.44 : x
  2. Step 2: Convert to fraction form
    2,830,122.79/4,245,478.65 = 780,783.44/x
  3. Step 3: Cross multiply
    2,830,122.79x = 4,245,478.65 × 780,783.44
  4. Step 4: Simplify right side
    2,830,122.79x = 3,314,799,403,566.16
  5. Step 5: Solve for x
    x = 3,314,799,403,566.16/2,830,122.79
  6. Step 6: Final answer
    x = 1,171,256.39

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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.