Finding the Fourth Proportional to 615,980.14, 850,069.71 and 340,355.75
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Solution
The fourth proportional to 615,980.14, 850,069.71 and 340,355.75 is: 469,700.39
Step by Step Solution
- Step 1: Write the proportion equation
615,980.14 : 850,069.71 = 340,355.75 : x - Step 2: Convert to fraction form
615,980.14/850,069.71 = 340,355.75/x - Step 3: Cross multiply
615,980.14x = 850,069.71 × 340,355.75 - Step 4: Simplify right side
615,980.14x = 289,326,109,448.98 - Step 5: Solve for x
x = 289,326,109,448.98/615,980.14 - Step 6: Final answer
x = 469,700.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.