Home / 670,844.93-925,790.72-384,420.38

Finding the Fourth Proportional to 670,844.93, 925,790.72 and 384,420.38

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Solution

The fourth proportional to 670,844.93, 925,790.72 and 384,420.38 is: 530,514.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,844.93 : 925,790.72 = 384,420.38 : x
  2. Step 2: Convert to fraction form
    670,844.93/925,790.72 = 384,420.38/x
  3. Step 3: Cross multiply
    670,844.93x = 925,790.72 × 384,420.38
  4. Step 4: Simplify right side
    670,844.93x = 355,892,813,831.82
  5. Step 5: Solve for x
    x = 355,892,813,831.82/670,844.93
  6. Step 6: Final answer
    x = 530,514.28

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Double scale
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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.