Finding the Fourth Proportional to 518,727.16, 715,848.95 and 292,372.66
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Solution
The fourth proportional to 518,727.16, 715,848.95 and 292,372.66 is: 403,477.35
Step by Step Solution
- Step 1: Write the proportion equation
518,727.16 : 715,848.95 = 292,372.66 : x - Step 2: Convert to fraction form
518,727.16/715,848.95 = 292,372.66/x - Step 3: Cross multiply
518,727.16x = 715,848.95 × 292,372.66 - Step 4: Simplify right side
518,727.16x = 209,294,658,418.22 - Step 5: Solve for x
x = 209,294,658,418.22/518,727.16 - Step 6: Final answer
x = 403,477.35
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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.