Home / 917,085.20-1,375,185.22-384,463.22

Finding the Fourth Proportional to 917,085.20, 1,375,185.22 and 384,463.22

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Solution

The fourth proportional to 917,085.20, 1,375,185.22 and 384,463.22 is: 576,509.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,085.20 : 1,375,185.22 = 384,463.22 : x
  2. Step 2: Convert to fraction form
    917,085.20/1,375,185.22 = 384,463.22/x
  3. Step 3: Cross multiply
    917,085.20x = 1,375,185.22 × 384,463.22
  4. Step 4: Simplify right side
    917,085.20x = 528,708,129,940.52
  5. Step 5: Solve for x
    x = 528,708,129,940.52/917,085.20
  6. Step 6: Final answer
    x = 576,509.28

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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.