Home / 711,130.07-1,066,696.13-290,405.94

Finding the Fourth Proportional to 711,130.07, 1,066,696.13 and 290,405.94

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Solution

The fourth proportional to 711,130.07, 1,066,696.13 and 290,405.94 is: 435,609.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,130.07 : 1,066,696.13 = 290,405.94 : x
  2. Step 2: Convert to fraction form
    711,130.07/1,066,696.13 = 290,405.94/x
  3. Step 3: Cross multiply
    711,130.07x = 1,066,696.13 × 290,405.94
  4. Step 4: Simplify right side
    711,130.07x = 309,774,890,874.98
  5. Step 5: Solve for x
    x = 309,774,890,874.98/711,130.07
  6. Step 6: Final answer
    x = 435,609.33

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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.