Home / 703,135.20-1,054,443.60-348,031.20

Finding the Fourth Proportional to 703,135.20, 1,054,443.60 and 348,031.20

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Solution

The fourth proportional to 703,135.20, 1,054,443.60 and 348,031.20 is: 521,918.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,135.20 : 1,054,443.60 = 348,031.20 : x
  2. Step 2: Convert to fraction form
    703,135.20/1,054,443.60 = 348,031.20/x
  3. Step 3: Cross multiply
    703,135.20x = 1,054,443.60 × 348,031.20
  4. Step 4: Simplify right side
    703,135.20x = 366,979,271,440.32
  5. Step 5: Solve for x
    x = 366,979,271,440.32/703,135.20
  6. Step 6: Final answer
    x = 521,918.50

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Half scale
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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.