Finding the Fourth Proportional to 977,366.30, 1,347,965.79 and 687,935.98
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Solution
The fourth proportional to 977,366.30, 1,347,965.79 and 687,935.98 is: 948,788.77
Step by Step Solution
- Step 1: Write the proportion equation
977,366.30 : 1,347,965.79 = 687,935.98 : x - Step 2: Convert to fraction form
977,366.30/1,347,965.79 = 687,935.98/x - Step 3: Cross multiply
977,366.30x = 1,347,965.79 × 687,935.98 - Step 4: Simplify right side
977,366.30x = 927,314,166,750.12 - Step 5: Solve for x
x = 927,314,166,750.12/977,366.30 - Step 6: Final answer
x = 948,788.77
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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.