Finding the Fourth Proportional to 640,947.68, 884,409.55 and 368,963.02
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Solution
The fourth proportional to 640,947.68, 884,409.55 and 368,963.02 is: 509,112.41
Step by Step Solution
- Step 1: Write the proportion equation
640,947.68 : 884,409.55 = 368,963.02 : x - Step 2: Convert to fraction form
640,947.68/884,409.55 = 368,963.02/x - Step 3: Cross multiply
640,947.68x = 884,409.55 × 368,963.02 - Step 4: Simplify right side
640,947.68x = 326,314,418,667.95 - Step 5: Solve for x
x = 326,314,418,667.95/640,947.68 - Step 6: Final answer
x = 509,112.41
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.