Home / 770,030.89-1,155,125.54-290,662.47

Finding the Fourth Proportional to 770,030.89, 1,155,125.54 and 290,662.47

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Solution

The fourth proportional to 770,030.89, 1,155,125.54 and 290,662.47 is: 436,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,030.89 : 1,155,125.54 = 290,662.47 : x
  2. Step 2: Convert to fraction form
    770,030.89/1,155,125.54 = 290,662.47/x
  3. Step 3: Cross multiply
    770,030.89x = 1,155,125.54 × 290,662.47
  4. Step 4: Simplify right side
    770,030.89x = 335,751,643,343.14
  5. Step 5: Solve for x
    x = 335,751,643,343.14/770,030.89
  6. Step 6: Final answer
    x = 436,023.60

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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.