Finding the Fourth Proportional to 752,665.62, 1,038,669.74 and 408,502.14
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Solution
The fourth proportional to 752,665.62, 1,038,669.74 and 408,502.14 is: 563,728.17
Step by Step Solution
- Step 1: Write the proportion equation
752,665.62 : 1,038,669.74 = 408,502.14 : x - Step 2: Convert to fraction form
752,665.62/1,038,669.74 = 408,502.14/x - Step 3: Cross multiply
752,665.62x = 1,038,669.74 × 408,502.14 - Step 4: Simplify right side
752,665.62x = 424,298,811,543.24 - Step 5: Solve for x
x = 424,298,811,543.24/752,665.62 - Step 6: Final answer
x = 563,728.17
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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.