Finding the Fourth Proportional to 905,427.76, 1,249,486.14 and 497,554.96
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Solution
The fourth proportional to 905,427.76, 1,249,486.14 and 497,554.96 is: 686,623.55
Step by Step Solution
- Step 1: Write the proportion equation
905,427.76 : 1,249,486.14 = 497,554.96 : x - Step 2: Convert to fraction form
905,427.76/1,249,486.14 = 497,554.96/x - Step 3: Cross multiply
905,427.76x = 1,249,486.14 × 497,554.96 - Step 4: Simplify right side
905,427.76x = 621,688,026,408.25 - Step 5: Solve for x
x = 621,688,026,408.25/905,427.76 - Step 6: Final answer
x = 686,623.55
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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.