Finding the Fourth Proportional to 1,190,298.74, 1,643,114.84 and 803,637.95
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Solution
The fourth proportional to 1,190,298.74, 1,643,114.84 and 803,637.95 is: 1,109,359.68
Step by Step Solution
- Step 1: Write the proportion equation
1,190,298.74 : 1,643,114.84 = 803,637.95 : x - Step 2: Convert to fraction form
1,190,298.74/1,643,114.84 = 803,637.95/x - Step 3: Cross multiply
1,190,298.74x = 1,643,114.84 × 803,637.95 - Step 4: Simplify right side
1,190,298.74x = 1,320,469,429,398.41 - Step 5: Solve for x
x = 1,320,469,429,398.41/1,190,298.74 - Step 6: Final answer
x = 1,109,359.68
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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.