Home / 759,491.67-1,048,095.77-428,321.28

Finding the Fourth Proportional to 759,491.67, 1,048,095.77 and 428,321.28

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Solution

The fourth proportional to 759,491.67, 1,048,095.77 and 428,321.28 is: 591,081.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,491.67 : 1,048,095.77 = 428,321.28 : x
  2. Step 2: Convert to fraction form
    759,491.67/1,048,095.77 = 428,321.28/x
  3. Step 3: Cross multiply
    759,491.67x = 1,048,095.77 × 428,321.28
  4. Step 4: Simplify right side
    759,491.67x = 448,921,719,627.38
  5. Step 5: Solve for x
    x = 448,921,719,627.38/759,491.67
  6. Step 6: Final answer
    x = 591,081.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.