Home / 857,980.16-1,286,971.81-352,188.62

Finding the Fourth Proportional to 857,980.16, 1,286,971.81 and 352,188.62

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Solution

The fourth proportional to 857,980.16, 1,286,971.81 and 352,188.62 is: 528,283.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,980.16 : 1,286,971.81 = 352,188.62 : x
  2. Step 2: Convert to fraction form
    857,980.16/1,286,971.81 = 352,188.62/x
  3. Step 3: Cross multiply
    857,980.16x = 1,286,971.81 × 352,188.62
  4. Step 4: Simplify right side
    857,980.16x = 453,256,823,253.62
  5. Step 5: Solve for x
    x = 453,256,823,253.62/857,980.16
  6. Step 6: Final answer
    x = 528,283.57

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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.