Home / 792,135.40-1,188,203.10-286,938.40

Finding the Fourth Proportional to 792,135.40, 1,188,203.10 and 286,938.40

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Solution

The fourth proportional to 792,135.40, 1,188,203.10 and 286,938.40 is: 430,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,135.40 : 1,188,203.10 = 286,938.40 : x
  2. Step 2: Convert to fraction form
    792,135.40/1,188,203.10 = 286,938.40/x
  3. Step 3: Cross multiply
    792,135.40x = 1,188,203.10 × 286,938.40
  4. Step 4: Simplify right side
    792,135.40x = 340,941,096,389.04
  5. Step 5: Solve for x
    x = 340,941,096,389.04/792,135.40
  6. Step 6: Final answer
    x = 430,407.60

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Double scale
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Similar ratio
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1.5x scale

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.