Finding the Fourth Proportional to 938,277.27, 1,405,420.17 and 553,611.55
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Solution
The fourth proportional to 938,277.27, 1,405,420.17 and 553,611.55 is: 829,239.78
Step by Step Solution
- Step 1: Write the proportion equation
938,277.27 : 1,405,420.17 = 553,611.55 : x - Step 2: Convert to fraction form
938,277.27/1,405,420.17 = 553,611.55/x - Step 3: Cross multiply
938,277.27x = 1,405,420.17 × 553,611.55 - Step 4: Simplify right side
938,277.27x = 778,056,838,714.96 - Step 5: Solve for x
x = 778,056,838,714.96/938,277.27 - Step 6: Final answer
x = 829,239.78
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.