Finding the Fourth Proportional to 1,121,602.17, 1,547,803.12 and 612,304.55
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Solution
The fourth proportional to 1,121,602.17, 1,547,803.12 and 612,304.55 is: 844,975.97
Step by Step Solution
- Step 1: Write the proportion equation
1,121,602.17 : 1,547,803.12 = 612,304.55 : x - Step 2: Convert to fraction form
1,121,602.17/1,547,803.12 = 612,304.55/x - Step 3: Cross multiply
1,121,602.17x = 1,547,803.12 × 612,304.55 - Step 4: Simplify right side
1,121,602.17x = 947,726,885,619.57 - Step 5: Solve for x
x = 947,726,885,619.57/1,121,602.17 - Step 6: Final answer
x = 844,975.97
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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.