Home / 759,697.61-1,139,125.69-310,733.78

Finding the Fourth Proportional to 759,697.61, 1,139,125.69 and 310,733.78

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Solution

The fourth proportional to 759,697.61, 1,139,125.69 and 310,733.78 is: 465,928.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,697.61 : 1,139,125.69 = 310,733.78 : x
  2. Step 2: Convert to fraction form
    759,697.61/1,139,125.69 = 310,733.78/x
  3. Step 3: Cross multiply
    759,697.61x = 1,139,125.69 × 310,733.78
  4. Step 4: Simplify right side
    759,697.61x = 353,964,830,771.97
  5. Step 5: Solve for x
    x = 353,964,830,771.97/759,697.61
  6. Step 6: Final answer
    x = 465,928.58

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1.5x scale

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.