Home / 743,150.40-1,114,725.60-519,201.60

Finding the Fourth Proportional to 743,150.40, 1,114,725.60 and 519,201.60

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Solution

The fourth proportional to 743,150.40, 1,114,725.60 and 519,201.60 is: 778,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,150.40 : 1,114,725.60 = 519,201.60 : x
  2. Step 2: Convert to fraction form
    743,150.40/1,114,725.60 = 519,201.60/x
  3. Step 3: Cross multiply
    743,150.40x = 1,114,725.60 × 519,201.60
  4. Step 4: Simplify right side
    743,150.40x = 578,767,315,080.96
  5. Step 5: Solve for x
    x = 578,767,315,080.96/743,150.40
  6. Step 6: Final answer
    x = 778,802.40

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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.