Home / 688,130.34-1,032,195.48-214,856.25

Finding the Fourth Proportional to 688,130.34, 1,032,195.48 and 214,856.25

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Solution

The fourth proportional to 688,130.34, 1,032,195.48 and 214,856.25 is: 322,284.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,130.34 : 1,032,195.48 = 214,856.25 : x
  2. Step 2: Convert to fraction form
    688,130.34/1,032,195.48 = 214,856.25/x
  3. Step 3: Cross multiply
    688,130.34x = 1,032,195.48 × 214,856.25
  4. Step 4: Simplify right side
    688,130.34x = 221,773,650,099.75
  5. Step 5: Solve for x
    x = 221,773,650,099.75/688,130.34
  6. Step 6: Final answer
    x = 322,284.37

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Double scale
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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.