Home / 748,051.36-1,032,314.66-408,519.60

Finding the Fourth Proportional to 748,051.36, 1,032,314.66 and 408,519.60

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Solution

The fourth proportional to 748,051.36, 1,032,314.66 and 408,519.60 is: 563,759.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,051.36 : 1,032,314.66 = 408,519.60 : x
  2. Step 2: Convert to fraction form
    748,051.36/1,032,314.66 = 408,519.60/x
  3. Step 3: Cross multiply
    748,051.36x = 1,032,314.66 × 408,519.60
  4. Step 4: Simplify right side
    748,051.36x = 421,720,771,977.34
  5. Step 5: Solve for x
    x = 421,720,771,977.34/748,051.36
  6. Step 6: Final answer
    x = 563,759.11

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Double scale
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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.