Finding the Fourth Proportional to 715,475.10, 987,448.95 and 461,564.94
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Solution
The fourth proportional to 715,475.10, 987,448.95 and 461,564.94 is: 637,019.81
Step by Step Solution
- Step 1: Write the proportion equation
715,475.10 : 987,448.95 = 461,564.94 : x - Step 2: Convert to fraction form
715,475.10/987,448.95 = 461,564.94/x - Step 3: Cross multiply
715,475.10x = 987,448.95 × 461,564.94 - Step 4: Simplify right side
715,475.10x = 455,771,815,359.81 - Step 5: Solve for x
x = 455,771,815,359.81/715,475.10 - Step 6: Final answer
x = 637,019.81
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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.