Finding the Fourth Proportional to 987,547.14, 1,363,402.40 and 625,281.53
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Solution
The fourth proportional to 987,547.14, 1,363,402.40 and 625,281.53 is: 863,260.39
Step by Step Solution
- Step 1: Write the proportion equation
987,547.14 : 1,363,402.40 = 625,281.53 : x - Step 2: Convert to fraction form
987,547.14/1,363,402.40 = 625,281.53/x - Step 3: Cross multiply
987,547.14x = 1,363,402.40 × 625,281.53 - Step 4: Simplify right side
987,547.14x = 852,510,328,734.25 - Step 5: Solve for x
x = 852,510,328,734.25/987,547.14 - Step 6: Final answer
x = 863,260.39
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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.