Home / 665,629.47-999,329.95-350,307.81

Finding the Fourth Proportional to 665,629.47, 999,329.95 and 350,307.81

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Solution

The fourth proportional to 665,629.47, 999,329.95 and 350,307.81 is: 525,927.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,629.47 : 999,329.95 = 350,307.81 : x
  2. Step 2: Convert to fraction form
    665,629.47/999,329.95 = 350,307.81/x
  3. Step 3: Cross multiply
    665,629.47x = 999,329.95 × 350,307.81
  4. Step 4: Simplify right side
    665,629.47x = 350,073,081,255.26
  5. Step 5: Solve for x
    x = 350,073,081,255.26/665,629.47
  6. Step 6: Final answer
    x = 525,927.86

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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.