Finding the Fourth Proportional to 1,386,380.07, 1,913,294.27 and 774,536.12
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Solution
The fourth proportional to 1,386,380.07, 1,913,294.27 and 774,536.12 is: 1,068,909.99
Step by Step Solution
- Step 1: Write the proportion equation
1,386,380.07 : 1,913,294.27 = 774,536.12 : x - Step 2: Convert to fraction form
1,386,380.07/1,913,294.27 = 774,536.12/x - Step 3: Cross multiply
1,386,380.07x = 1,913,294.27 × 774,536.12 - Step 4: Simplify right side
1,386,380.07x = 1,481,915,506,864.88 - Step 5: Solve for x
x = 1,481,915,506,864.88/1,386,380.07 - Step 6: Final answer
x = 1,068,909.99
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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.