Finding the Fourth Proportional to 752,681.05, 1,038,700.83 and 408,516.96
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Solution
The fourth proportional to 752,681.05, 1,038,700.83 and 408,516.96 is: 563,753.94
Step by Step Solution
- Step 1: Write the proportion equation
752,681.05 : 1,038,700.83 = 408,516.96 : x - Step 2: Convert to fraction form
752,681.05/1,038,700.83 = 408,516.96/x - Step 3: Cross multiply
752,681.05x = 1,038,700.83 × 408,516.96 - Step 4: Simplify right side
752,681.05x = 424,326,905,421.08 - Step 5: Solve for x
x = 424,326,905,421.08/752,681.05 - Step 6: Final answer
x = 563,753.94
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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.