Finding the Fourth Proportional to 438,701.19, 605,402.55 and 247,722.63
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Solution
The fourth proportional to 438,701.19, 605,402.55 and 247,722.63 is: 341,854.35
Step by Step Solution
- Step 1: Write the proportion equation
438,701.19 : 605,402.55 = 247,722.63 : x - Step 2: Convert to fraction form
438,701.19/605,402.55 = 247,722.63/x - Step 3: Cross multiply
438,701.19x = 605,402.55 × 247,722.63 - Step 4: Simplify right side
438,701.19x = 149,971,911,894.71 - Step 5: Solve for x
x = 149,971,911,894.71/438,701.19 - Step 6: Final answer
x = 341,854.35
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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.