Finding the Fourth Proportional to 1,129,866.26, 1,558,835.93 and 639,769.02
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Solution
The fourth proportional to 1,129,866.26, 1,558,835.93 and 639,769.02 is: 882,666.36
Step by Step Solution
- Step 1: Write the proportion equation
1,129,866.26 : 1,558,835.93 = 639,769.02 : x - Step 2: Convert to fraction form
1,129,866.26/1,558,835.93 = 639,769.02/x - Step 3: Cross multiply
1,129,866.26x = 1,558,835.93 × 639,769.02 - Step 4: Simplify right side
1,129,866.26x = 997,294,935,276.89 - Step 5: Solve for x
x = 997,294,935,276.89/1,129,866.26 - Step 6: Final answer
x = 882,666.36
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.