Finding the Fourth Proportional to 905,613.08, 1,249,719.62 and 518,415.66
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Solution
The fourth proportional to 905,613.08, 1,249,719.62 and 518,415.66 is: 715,398.48
Step by Step Solution
- Step 1: Write the proportion equation
905,613.08 : 1,249,719.62 = 518,415.66 : x - Step 2: Convert to fraction form
905,613.08/1,249,719.62 = 518,415.66/x - Step 3: Cross multiply
905,613.08x = 1,249,719.62 × 518,415.66 - Step 4: Simplify right side
905,613.08x = 647,874,221,617.25 - Step 5: Solve for x
x = 647,874,221,617.25/905,613.08 - Step 6: Final answer
x = 715,398.48
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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.