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Finding the Fourth Proportional to 515,482.36, 772,588.98 and 245,752.60

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Solution

The fourth proportional to 515,482.36, 772,588.98 and 245,752.60 is: 368,326.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,482.36 : 772,588.98 = 245,752.60 : x
  2. Step 2: Convert to fraction form
    515,482.36/772,588.98 = 245,752.60/x
  3. Step 3: Cross multiply
    515,482.36x = 772,588.98 × 245,752.60
  4. Step 4: Simplify right side
    515,482.36x = 189,865,750,566.35
  5. Step 5: Solve for x
    x = 189,865,750,566.35/515,482.36
  6. Step 6: Final answer
    x = 368,326.38

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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.