Finding the Fourth Proportional to 977,753.70, 1,463,678.10 and 859,655.70
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Solution
The fourth proportional to 977,753.70, 1,463,678.10 and 859,655.70 is: 1,286,887.71
Step by Step Solution
- Step 1: Write the proportion equation
977,753.70 : 1,463,678.10 = 859,655.70 : x - Step 2: Convert to fraction form
977,753.70/1,463,678.10 = 859,655.70/x - Step 3: Cross multiply
977,753.70x = 1,463,678.10 × 859,655.70 - Step 4: Simplify right side
977,753.70x = 1,258,259,221,630.17 - Step 5: Solve for x
x = 1,258,259,221,630.17/977,753.70 - Step 6: Final answer
x = 1,286,887.71
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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.