Finding the Fourth Proportional to 539,916.71, 745,070.80 and 298,194.08
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Solution
The fourth proportional to 539,916.71, 745,070.80 and 298,194.08 is: 411,499.95
Step by Step Solution
- Step 1: Write the proportion equation
539,916.71 : 745,070.80 = 298,194.08 : x - Step 2: Convert to fraction form
539,916.71/745,070.80 = 298,194.08/x - Step 3: Cross multiply
539,916.71x = 745,070.80 × 298,194.08 - Step 4: Simplify right side
539,916.71x = 222,175,701,740.86 - Step 5: Solve for x
x = 222,175,701,740.86/539,916.71 - Step 6: Final answer
x = 411,499.95
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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.