Home / 759,762.06-1,048,401.18-420,223.02

Finding the Fourth Proportional to 759,762.06, 1,048,401.18 and 420,223.02

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Solution

The fourth proportional to 759,762.06, 1,048,401.18 and 420,223.02 is: 579,868.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,762.06 : 1,048,401.18 = 420,223.02 : x
  2. Step 2: Convert to fraction form
    759,762.06/1,048,401.18 = 420,223.02/x
  3. Step 3: Cross multiply
    759,762.06x = 1,048,401.18 × 420,223.02
  4. Step 4: Simplify right side
    759,762.06x = 440,562,310,031.16
  5. Step 5: Solve for x
    x = 440,562,310,031.16/759,762.06
  6. Step 6: Final answer
    x = 579,868.79

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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.