Finding the Fourth Proportional to 915,751.48, 1,371,979.68 and 861,730.96
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Solution
The fourth proportional to 915,751.48, 1,371,979.68 and 861,730.96 is: 1,291,046.09
Step by Step Solution
- Step 1: Write the proportion equation
915,751.48 : 1,371,979.68 = 861,730.96 : x - Step 2: Convert to fraction form
915,751.48/1,371,979.68 = 861,730.96/x - Step 3: Cross multiply
915,751.48x = 1,371,979.68 × 861,730.96 - Step 4: Simplify right side
915,751.48x = 1,182,277,366,746.89 - Step 5: Solve for x
x = 1,182,277,366,746.89/915,751.48 - Step 6: Final answer
x = 1,291,046.09
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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.