Finding the Fourth Proportional to 640,396.41, 883,722.40 and 368,551.63
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Solution
The fourth proportional to 640,396.41, 883,722.40 and 368,551.63 is: 508,587.07
Step by Step Solution
- Step 1: Write the proportion equation
640,396.41 : 883,722.40 = 368,551.63 : x - Step 2: Convert to fraction form
640,396.41/883,722.40 = 368,551.63/x - Step 3: Cross multiply
640,396.41x = 883,722.40 × 368,551.63 - Step 4: Simplify right side
640,396.41x = 325,697,330,987.51 - Step 5: Solve for x
x = 325,697,330,987.51/640,396.41 - Step 6: Final answer
x = 508,587.07
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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.