Home / 759,576.15-1,048,063.46-419,978.79

Finding the Fourth Proportional to 759,576.15, 1,048,063.46 and 419,978.79

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Solution

The fourth proportional to 759,576.15, 1,048,063.46 and 419,978.79 is: 579,486.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,576.15 : 1,048,063.46 = 419,978.79 : x
  2. Step 2: Convert to fraction form
    759,576.15/1,048,063.46 = 419,978.79/x
  3. Step 3: Cross multiply
    759,576.15x = 1,048,063.46 × 419,978.79
  4. Step 4: Simplify right side
    759,576.15x = 440,164,421,674.12
  5. Step 5: Solve for x
    x = 440,164,421,674.12/759,576.15
  6. Step 6: Final answer
    x = 579,486.89

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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.