Home / 770,041.95-1,155,142.11-290,673.51

Finding the Fourth Proportional to 770,041.95, 1,155,142.11 and 290,673.51

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Solution

The fourth proportional to 770,041.95, 1,155,142.11 and 290,673.51 is: 436,040.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,041.95 : 1,155,142.11 = 290,673.51 : x
  2. Step 2: Convert to fraction form
    770,041.95/1,155,142.11 = 290,673.51/x
  3. Step 3: Cross multiply
    770,041.95x = 1,155,142.11 × 290,673.51
  4. Step 4: Simplify right side
    770,041.95x = 335,769,211,662.51
  5. Step 5: Solve for x
    x = 335,769,211,662.51/770,041.95
  6. Step 6: Final answer
    x = 436,040.16

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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.