Finding the Fourth Proportional to 984,155.68, 1,358,235.12 and 602,434.72
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Solution
The fourth proportional to 984,155.68, 1,358,235.12 and 602,434.72 is: 831,421.30
Step by Step Solution
- Step 1: Write the proportion equation
984,155.68 : 1,358,235.12 = 602,434.72 : x - Step 2: Convert to fraction form
984,155.68/1,358,235.12 = 602,434.72/x - Step 3: Cross multiply
984,155.68x = 1,358,235.12 × 602,434.72 - Step 4: Simplify right side
984,155.68x = 818,247,994,211.37 - Step 5: Solve for x
x = 818,247,994,211.37/984,155.68 - Step 6: Final answer
x = 831,421.30
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1.5x scale
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.