Finding the Fourth Proportional to 615,234.80, 922,340.20 and 260,521.20
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Solution
The fourth proportional to 615,234.80, 922,340.20 and 260,521.20 is: 390,564.99
Step by Step Solution
- Step 1: Write the proportion equation
615,234.80 : 922,340.20 = 260,521.20 : x - Step 2: Convert to fraction form
615,234.80/922,340.20 = 260,521.20/x - Step 3: Cross multiply
615,234.80x = 922,340.20 × 260,521.20 - Step 4: Simplify right side
615,234.80x = 240,289,175,712.24 - Step 5: Solve for x
x = 240,289,175,712.24/615,234.80 - Step 6: Final answer
x = 390,564.99
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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.