Finding the Fourth Proportional to 615,228.80, 922,331.20 and 260,515.20
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Solution
The fourth proportional to 615,228.80, 922,331.20 and 260,515.20 is: 390,556.00
Step by Step Solution
- Step 1: Write the proportion equation
615,228.80 : 922,331.20 = 260,515.20 : x - Step 2: Convert to fraction form
615,228.80/922,331.20 = 260,515.20/x - Step 3: Cross multiply
615,228.80x = 922,331.20 × 260,515.20 - Step 4: Simplify right side
615,228.80x = 240,281,297,034.24 - Step 5: Solve for x
x = 240,281,297,034.24/615,228.80 - Step 6: Final answer
x = 390,556.00
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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.