Finding the Fourth Proportional to 879,902.71, 1,214,258.65 and 477,494.71
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Solution
The fourth proportional to 879,902.71, 1,214,258.65 and 477,494.71 is: 658,938.85
Step by Step Solution
- Step 1: Write the proportion equation
879,902.71 : 1,214,258.65 = 477,494.71 : x - Step 2: Convert to fraction form
879,902.71/1,214,258.65 = 477,494.71/x - Step 3: Cross multiply
879,902.71x = 1,214,258.65 × 477,494.71 - Step 4: Simplify right side
879,902.71x = 579,802,081,946.74 - Step 5: Solve for x
x = 579,802,081,946.74/879,902.71 - Step 6: Final answer
x = 658,938.85
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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.