Home / 743,172.46-1,026,002.91-489,261.76

Finding the Fourth Proportional to 743,172.46, 1,026,002.91 and 489,261.76

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Solution

The fourth proportional to 743,172.46, 1,026,002.91 and 489,261.76 is: 675,460.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,172.46 : 1,026,002.91 = 489,261.76 : x
  2. Step 2: Convert to fraction form
    743,172.46/1,026,002.91 = 489,261.76/x
  3. Step 3: Cross multiply
    743,172.46x = 1,026,002.91 × 489,261.76
  4. Step 4: Simplify right side
    743,172.46x = 501,983,989,511.72
  5. Step 5: Solve for x
    x = 501,983,989,511.72/743,172.46
  6. Step 6: Final answer
    x = 675,460.97

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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.