Finding the Fourth Proportional to 902,022.12, 1,243,931.58 and 539,386.92
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Solution
The fourth proportional to 902,022.12, 1,243,931.58 and 539,386.92 is: 743,840.32
Step by Step Solution
- Step 1: Write the proportion equation
902,022.12 : 1,243,931.58 = 539,386.92 : x - Step 2: Convert to fraction form
902,022.12/1,243,931.58 = 539,386.92/x - Step 3: Cross multiply
902,022.12x = 1,243,931.58 × 539,386.92 - Step 4: Simplify right side
902,022.12x = 670,960,423,626.93 - Step 5: Solve for x
x = 670,960,423,626.93/902,022.12 - Step 6: Final answer
x = 743,840.32
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1.5x scale
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.