Home / 509,258.29-702,837.54-305,421.35

Finding the Fourth Proportional to 509,258.29, 702,837.54 and 305,421.35

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Solution

The fourth proportional to 509,258.29, 702,837.54 and 305,421.35 is: 421,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,258.29 : 702,837.54 = 305,421.35 : x
  2. Step 2: Convert to fraction form
    509,258.29/702,837.54 = 305,421.35/x
  3. Step 3: Cross multiply
    509,258.29x = 702,837.54 × 305,421.35
  4. Step 4: Simplify right side
    509,258.29x = 214,661,590,297.48
  5. Step 5: Solve for x
    x = 214,661,590,297.48/509,258.29
  6. Step 6: Final answer
    x = 421,518.11

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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.