Finding the Fourth Proportional to 689,058.48, 1,032,688.26 and 351,813.96
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Solution
The fourth proportional to 689,058.48, 1,032,688.26 and 351,813.96 is: 527,261.70
Step by Step Solution
- Step 1: Write the proportion equation
689,058.48 : 1,032,688.26 = 351,813.96 : x - Step 2: Convert to fraction form
689,058.48/1,032,688.26 = 351,813.96/x - Step 3: Cross multiply
689,058.48x = 1,032,688.26 × 351,813.96 - Step 4: Simplify right side
689,058.48x = 363,314,146,196.11 - Step 5: Solve for x
x = 363,314,146,196.11/689,058.48 - Step 6: Final answer
x = 527,261.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.