Finding the Fourth Proportional to 1,030,331.59, 1,421,786.76 and 571,403.09
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Solution
The fourth proportional to 1,030,331.59, 1,421,786.76 and 571,403.09 is: 788,496.98
Step by Step Solution
- Step 1: Write the proportion equation
1,030,331.59 : 1,421,786.76 = 571,403.09 : x - Step 2: Convert to fraction form
1,030,331.59/1,421,786.76 = 571,403.09/x - Step 3: Cross multiply
1,030,331.59x = 1,421,786.76 × 571,403.09 - Step 4: Simplify right side
1,030,331.59x = 812,413,347,985.09 - Step 5: Solve for x
x = 812,413,347,985.09/1,030,331.59 - Step 6: Final answer
x = 788,496.98
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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.