Home / 646,433.28-892,075.68-359,956.80

Finding the Fourth Proportional to 646,433.28, 892,075.68 and 359,956.80

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Solution

The fourth proportional to 646,433.28, 892,075.68 and 359,956.80 is: 496,739.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,433.28 : 892,075.68 = 359,956.80 : x
  2. Step 2: Convert to fraction form
    646,433.28/892,075.68 = 359,956.80/x
  3. Step 3: Cross multiply
    646,433.28x = 892,075.68 × 359,956.80
  4. Step 4: Simplify right side
    646,433.28x = 321,108,707,130.62
  5. Step 5: Solve for x
    x = 321,108,707,130.62/646,433.28
  6. Step 6: Final answer
    x = 496,739.13

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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.