Finding the Fourth Proportional to 1,386,768.57, 1,913,703.84 and 774,926.36
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Solution
The fourth proportional to 1,386,768.57, 1,913,703.84 and 774,926.36 is: 1,069,377.82
Step by Step Solution
- Step 1: Write the proportion equation
1,386,768.57 : 1,913,703.84 = 774,926.36 : x - Step 2: Convert to fraction form
1,386,768.57/1,913,703.84 = 774,926.36/x - Step 3: Cross multiply
1,386,768.57x = 1,913,703.84 × 774,926.36 - Step 4: Simplify right side
1,386,768.57x = 1,482,979,548,457.09 - Step 5: Solve for x
x = 1,482,979,548,457.09/1,386,768.57 - Step 6: Final answer
x = 1,069,377.82
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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.