Home / 709,845.60-1,064,768.40-354,914.40

Finding the Fourth Proportional to 709,845.60, 1,064,768.40 and 354,914.40

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Solution

The fourth proportional to 709,845.60, 1,064,768.40 and 354,914.40 is: 532,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,845.60 : 1,064,768.40 = 354,914.40 : x
  2. Step 2: Convert to fraction form
    709,845.60/1,064,768.40 = 354,914.40/x
  3. Step 3: Cross multiply
    709,845.60x = 1,064,768.40 × 354,914.40
  4. Step 4: Simplify right side
    709,845.60x = 377,901,637,824.96
  5. Step 5: Solve for x
    x = 377,901,637,824.96/709,845.60
  6. Step 6: Final answer
    x = 532,371.60

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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.