Finding the Fourth Proportional to 712,916.74, 1,069,509.97 and 286,485.76
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Solution
The fourth proportional to 712,916.74, 1,069,509.97 and 286,485.76 is: 429,782.83
Step by Step Solution
- Step 1: Write the proportion equation
712,916.74 : 1,069,509.97 = 286,485.76 : x - Step 2: Convert to fraction form
712,916.74/1,069,509.97 = 286,485.76/x - Step 3: Cross multiply
712,916.74x = 1,069,509.97 × 286,485.76 - Step 4: Simplify right side
712,916.74x = 306,399,371,235.48 - Step 5: Solve for x
x = 306,399,371,235.48/712,916.74 - Step 6: Final answer
x = 429,782.83
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.