Finding the Fourth Proportional to 639,706.08, 881,624.88 and 424,466.40
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Solution
The fourth proportional to 639,706.08, 881,624.88 and 424,466.40 is: 584,987.62
Step by Step Solution
- Step 1: Write the proportion equation
639,706.08 : 881,624.88 = 424,466.40 : x - Step 2: Convert to fraction form
639,706.08/881,624.88 = 424,466.40/x - Step 3: Cross multiply
639,706.08x = 881,624.88 × 424,466.40 - Step 4: Simplify right side
639,706.08x = 374,220,138,964.03 - Step 5: Solve for x
x = 374,220,138,964.03/639,706.08 - Step 6: Final answer
x = 584,987.62
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1.5x scale
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.