Home / 770,971.68-1,064,343.60-480,670.92

Finding the Fourth Proportional to 770,971.68, 1,064,343.60 and 480,670.92

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Solution

The fourth proportional to 770,971.68, 1,064,343.60 and 480,670.92 is: 663,576.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,971.68 : 1,064,343.60 = 480,670.92 : x
  2. Step 2: Convert to fraction form
    770,971.68/1,064,343.60 = 480,670.92/x
  3. Step 3: Cross multiply
    770,971.68x = 1,064,343.60 × 480,670.92
  4. Step 4: Simplify right side
    770,971.68x = 511,599,017,408.11
  5. Step 5: Solve for x
    x = 511,599,017,408.11/770,971.68
  6. Step 6: Final answer
    x = 663,576.93

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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.