Finding the Fourth Proportional to 660,309.84, 911,228.76 and 358,503.84
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Solution
The fourth proportional to 660,309.84, 911,228.76 and 358,503.84 is: 494,735.94
Step by Step Solution
- Step 1: Write the proportion equation
660,309.84 : 911,228.76 = 358,503.84 : x - Step 2: Convert to fraction form
660,309.84/911,228.76 = 358,503.84/x - Step 3: Cross multiply
660,309.84x = 911,228.76 × 358,503.84 - Step 4: Simplify right side
660,309.84x = 326,679,009,578.44 - Step 5: Solve for x
x = 326,679,009,578.44/660,309.84 - Step 6: Final answer
x = 494,735.94
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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.