Finding the Fourth Proportional to 387,328.57, 580,946.61 and 103,039.99
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Solution
The fourth proportional to 387,328.57, 580,946.61 and 103,039.99 is: 154,547.68
Step by Step Solution
- Step 1: Write the proportion equation
387,328.57 : 580,946.61 = 103,039.99 : x - Step 2: Convert to fraction form
387,328.57/580,946.61 = 103,039.99/x - Step 3: Cross multiply
387,328.57x = 580,946.61 × 103,039.99 - Step 4: Simplify right side
387,328.57x = 59,860,732,884.93 - Step 5: Solve for x
x = 59,860,732,884.93/387,328.57 - Step 6: Final answer
x = 154,547.68
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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.