Finding the Fourth Proportional to 369,623.70, 553,657.95 and 307,415.70
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Solution
The fourth proportional to 369,623.70, 553,657.95 and 307,415.70 is: 460,476.82
Step by Step Solution
- Step 1: Write the proportion equation
369,623.70 : 553,657.95 = 307,415.70 : x - Step 2: Convert to fraction form
369,623.70/553,657.95 = 307,415.70/x - Step 3: Cross multiply
369,623.70x = 553,657.95 × 307,415.70 - Step 4: Simplify right side
369,623.70x = 170,203,146,259.82 - Step 5: Solve for x
x = 170,203,146,259.82/369,623.70 - Step 6: Final answer
x = 460,476.82
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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.