Finding the Fourth Proportional to 987,604.79, 1,362,849.71 and 620,271.68
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Solution
The fourth proportional to 987,604.79, 1,362,849.71 and 620,271.68 is: 855,946.71
Step by Step Solution
- Step 1: Write the proportion equation
987,604.79 : 1,362,849.71 = 620,271.68 : x - Step 2: Convert to fraction form
987,604.79/1,362,849.71 = 620,271.68/x - Step 3: Cross multiply
987,604.79x = 1,362,849.71 × 620,271.68 - Step 4: Simplify right side
987,604.79x = 845,337,069,293.61 - Step 5: Solve for x
x = 845,337,069,293.61/987,604.79 - Step 6: Final answer
x = 855,946.71
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.