Home / 820,382.40-1,230,573.60-610,430.40

Finding the Fourth Proportional to 820,382.40, 1,230,573.60 and 610,430.40

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Solution

The fourth proportional to 820,382.40, 1,230,573.60 and 610,430.40 is: 915,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,382.40 : 1,230,573.60 = 610,430.40 : x
  2. Step 2: Convert to fraction form
    820,382.40/1,230,573.60 = 610,430.40/x
  3. Step 3: Cross multiply
    820,382.40x = 1,230,573.60 × 610,430.40
  4. Step 4: Simplify right side
    820,382.40x = 751,179,534,877.44
  5. Step 5: Solve for x
    x = 751,179,534,877.44/820,382.40
  6. Step 6: Final answer
    x = 915,645.60

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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.