Finding the Fourth Proportional to 680,026.10, 938,398.95 and 374,053.08
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Solution
The fourth proportional to 680,026.10, 938,398.95 and 374,053.08 is: 516,172.86
Step by Step Solution
- Step 1: Write the proportion equation
680,026.10 : 938,398.95 = 374,053.08 : x - Step 2: Convert to fraction form
680,026.10/938,398.95 = 374,053.08/x - Step 3: Cross multiply
680,026.10x = 938,398.95 × 374,053.08 - Step 4: Simplify right side
680,026.10x = 351,011,017,343.99 - Step 5: Solve for x
x = 351,011,017,343.99/680,026.10 - Step 6: Final answer
x = 516,172.86
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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.