Home / 685,618.26-1,028,816.25-370,068.18

Finding the Fourth Proportional to 685,618.26, 1,028,816.25 and 370,068.18

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Solution

The fourth proportional to 685,618.26, 1,028,816.25 and 370,068.18 is: 555,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,618.26 : 1,028,816.25 = 370,068.18 : x
  2. Step 2: Convert to fraction form
    685,618.26/1,028,816.25 = 370,068.18/x
  3. Step 3: Cross multiply
    685,618.26x = 1,028,816.25 × 370,068.18
  4. Step 4: Simplify right side
    685,618.26x = 380,732,157,191.93
  5. Step 5: Solve for x
    x = 380,732,157,191.93/685,618.26
  6. Step 6: Final answer
    x = 555,312.16

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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.