Finding the Fourth Proportional to 1,121,703.99, 1,547,943.51 and 612,406.35
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Solution
The fourth proportional to 1,121,703.99, 1,547,943.51 and 612,406.35 is: 845,116.40
Step by Step Solution
- Step 1: Write the proportion equation
1,121,703.99 : 1,547,943.51 = 612,406.35 : x - Step 2: Convert to fraction form
1,121,703.99/1,547,943.51 = 612,406.35/x - Step 3: Cross multiply
1,121,703.99x = 1,547,943.51 × 612,406.35 - Step 4: Simplify right side
1,121,703.99x = 947,970,434,965.29 - Step 5: Solve for x
x = 947,970,434,965.29/1,121,703.99 - Step 6: Final answer
x = 845,116.40
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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.