Home / 685,258.76-1,028,098.48-306,498.18

Finding the Fourth Proportional to 685,258.76, 1,028,098.48 and 306,498.18

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Solution

The fourth proportional to 685,258.76, 1,028,098.48 and 306,498.18 is: 459,841.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,258.76 : 1,028,098.48 = 306,498.18 : x
  2. Step 2: Convert to fraction form
    685,258.76/1,028,098.48 = 306,498.18/x
  3. Step 3: Cross multiply
    685,258.76x = 1,028,098.48 × 306,498.18
  4. Step 4: Simplify right side
    685,258.76x = 315,110,312,980.77
  5. Step 5: Solve for x
    x = 315,110,312,980.77/685,258.76
  6. Step 6: Final answer
    x = 459,841.35

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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.