Finding the Fourth Proportional to 1,091,721.24, 1,506,555.38 and 608,276.05
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Solution
The fourth proportional to 1,091,721.24, 1,506,555.38 and 608,276.05 is: 839,409.84
Step by Step Solution
- Step 1: Write the proportion equation
1,091,721.24 : 1,506,555.38 = 608,276.05 : x - Step 2: Convert to fraction form
1,091,721.24/1,506,555.38 = 608,276.05/x - Step 3: Cross multiply
1,091,721.24x = 1,506,555.38 × 608,276.05 - Step 4: Simplify right side
1,091,721.24x = 916,401,553,406.95 - Step 5: Solve for x
x = 916,401,553,406.95/1,091,721.24 - Step 6: Final answer
x = 839,409.84
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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.