Finding the Fourth Proportional to 645,361.24, 890,530.32 and 358,835.08
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Solution
The fourth proportional to 645,361.24, 890,530.32 and 358,835.08 is: 495,154.49
Step by Step Solution
- Step 1: Write the proportion equation
645,361.24 : 890,530.32 = 358,835.08 : x - Step 2: Convert to fraction form
645,361.24/890,530.32 = 358,835.08/x - Step 3: Cross multiply
645,361.24x = 890,530.32 × 358,835.08 - Step 4: Simplify right side
645,361.24x = 319,553,518,619.63 - Step 5: Solve for x
x = 319,553,518,619.63/645,361.24 - Step 6: Final answer
x = 495,154.49
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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.