Finding the Fourth Proportional to 569,432.62, 785,792.64 and 311,304.79
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Solution
The fourth proportional to 569,432.62, 785,792.64 and 311,304.79 is: 429,587.28
Step by Step Solution
- Step 1: Write the proportion equation
569,432.62 : 785,792.64 = 311,304.79 : x - Step 2: Convert to fraction form
569,432.62/785,792.64 = 311,304.79/x - Step 3: Cross multiply
569,432.62x = 785,792.64 × 311,304.79 - Step 4: Simplify right side
569,432.62x = 244,621,012,778.75 - Step 5: Solve for x
x = 244,621,012,778.75/569,432.62 - Step 6: Final answer
x = 429,587.28
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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.