Home / 916,922.80-1,375,384.20-384,266.80

Finding the Fourth Proportional to 916,922.80, 1,375,384.20 and 384,266.80

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Solution

The fourth proportional to 916,922.80, 1,375,384.20 and 384,266.80 is: 576,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,922.80 : 1,375,384.20 = 384,266.80 : x
  2. Step 2: Convert to fraction form
    916,922.80/1,375,384.20 = 384,266.80/x
  3. Step 3: Cross multiply
    916,922.80x = 1,375,384.20 × 384,266.80
  4. Step 4: Simplify right side
    916,922.80x = 528,514,485,304.56
  5. Step 5: Solve for x
    x = 528,514,485,304.56/916,922.80
  6. Step 6: Final answer
    x = 576,400.20

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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.