Finding the Fourth Proportional to 626,432.97, 864,478.07 and 339,953.07
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Solution
The fourth proportional to 626,432.97, 864,478.07 and 339,953.07 is: 469,135.55
Step by Step Solution
- Step 1: Write the proportion equation
626,432.97 : 864,478.07 = 339,953.07 : x - Step 2: Convert to fraction form
626,432.97/864,478.07 = 339,953.07/x - Step 3: Cross multiply
626,432.97x = 864,478.07 × 339,953.07 - Step 4: Simplify right side
626,432.97x = 293,881,973,844.18 - Step 5: Solve for x
x = 293,881,973,844.18/626,432.97 - Step 6: Final answer
x = 469,135.55
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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.