Home / 711,130.57-1,066,696.88-290,406.44

Finding the Fourth Proportional to 711,130.57, 1,066,696.88 and 290,406.44

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Solution

The fourth proportional to 711,130.57, 1,066,696.88 and 290,406.44 is: 435,610.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,130.57 : 1,066,696.88 = 290,406.44 : x
  2. Step 2: Convert to fraction form
    711,130.57/1,066,696.88 = 290,406.44/x
  3. Step 3: Cross multiply
    711,130.57x = 1,066,696.88 × 290,406.44
  4. Step 4: Simplify right side
    711,130.57x = 309,775,642,027.88
  5. Step 5: Solve for x
    x = 309,775,642,027.88/711,130.57
  6. Step 6: Final answer
    x = 435,610.08

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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.