Home / 382,905.90-528,554.69-301,020.52

Finding the Fourth Proportional to 382,905.90, 528,554.69 and 301,020.52

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Solution

The fourth proportional to 382,905.90, 528,554.69 and 301,020.52 is: 415,521.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,905.90 : 528,554.69 = 301,020.52 : x
  2. Step 2: Convert to fraction form
    382,905.90/528,554.69 = 301,020.52/x
  3. Step 3: Cross multiply
    382,905.90x = 528,554.69 × 301,020.52
  4. Step 4: Simplify right side
    382,905.90x = 159,105,807,632.24
  5. Step 5: Solve for x
    x = 159,105,807,632.24/382,905.90
  6. Step 6: Final answer
    x = 415,521.95

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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.