Finding the Fourth Proportional to 782,070.68, 1,079,779.98 and 527,328.92
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Solution
The fourth proportional to 782,070.68, 1,079,779.98 and 527,328.92 is: 728,066.18
Step by Step Solution
- Step 1: Write the proportion equation
782,070.68 : 1,079,779.98 = 527,328.92 : x - Step 2: Convert to fraction form
782,070.68/1,079,779.98 = 527,328.92/x - Step 3: Cross multiply
782,070.68x = 1,079,779.98 × 527,328.92 - Step 4: Simplify right side
782,070.68x = 569,399,210,691.02 - Step 5: Solve for x
x = 569,399,210,691.02/782,070.68 - Step 6: Final answer
x = 728,066.18
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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.