Finding the Fourth Proportional to 879,419.38, 1,319,356.49 and 514,988.75
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Solution
The fourth proportional to 879,419.38, 1,319,356.49 and 514,988.75 is: 772,616.31
Step by Step Solution
- Step 1: Write the proportion equation
879,419.38 : 1,319,356.49 = 514,988.75 : x - Step 2: Convert to fraction form
879,419.38/1,319,356.49 = 514,988.75/x - Step 3: Cross multiply
879,419.38x = 1,319,356.49 × 514,988.75 - Step 4: Simplify right side
879,419.38x = 679,453,754,175.35 - Step 5: Solve for x
x = 679,453,754,175.35/879,419.38 - Step 6: Final answer
x = 772,616.31
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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.