Finding the Fourth Proportional to 977,115.30, 1,465,672.95 and 312,267.30
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Solution
The fourth proportional to 977,115.30, 1,465,672.95 and 312,267.30 is: 468,400.95
Step by Step Solution
- Step 1: Write the proportion equation
977,115.30 : 1,465,672.95 = 312,267.30 : x - Step 2: Convert to fraction form
977,115.30/1,465,672.95 = 312,267.30/x - Step 3: Cross multiply
977,115.30x = 1,465,672.95 × 312,267.30 - Step 4: Simplify right side
977,115.30x = 457,681,734,779.54 - Step 5: Solve for x
x = 457,681,734,779.54/977,115.30 - Step 6: Final answer
x = 468,400.95
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1.5x scale
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.