Home / 743,279.46-1,026,150.60-489,368.76

Finding the Fourth Proportional to 743,279.46, 1,026,150.60 and 489,368.76

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Solution

The fourth proportional to 743,279.46, 1,026,150.60 and 489,368.76 is: 675,608.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,279.46 : 1,026,150.60 = 489,368.76 : x
  2. Step 2: Convert to fraction form
    743,279.46/1,026,150.60 = 489,368.76/x
  3. Step 3: Cross multiply
    743,279.46x = 1,026,150.60 × 489,368.76
  4. Step 4: Simplify right side
    743,279.46x = 502,166,046,695.26
  5. Step 5: Solve for x
    x = 502,166,046,695.26/743,279.46
  6. Step 6: Final answer
    x = 675,608.67

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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.