Finding the Fourth Proportional to 1,005,735.62, 1,387,915.11 and 553,026.62
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Solution
The fourth proportional to 1,005,735.62, 1,387,915.11 and 553,026.62 is: 763,176.71
Step by Step Solution
- Step 1: Write the proportion equation
1,005,735.62 : 1,387,915.11 = 553,026.62 : x - Step 2: Convert to fraction form
1,005,735.62/1,387,915.11 = 553,026.62/x - Step 3: Cross multiply
1,005,735.62x = 1,387,915.11 × 553,026.62 - Step 4: Simplify right side
1,005,735.62x = 767,554,002,130.23 - Step 5: Solve for x
x = 767,554,002,130.23/1,005,735.62 - Step 6: Final answer
x = 763,176.71
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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.