Finding the Fourth Proportional to 661,616.08, 913,238.12 and 375,326.48
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Solution
The fourth proportional to 661,616.08, 913,238.12 and 375,326.48 is: 518,068.50
Step by Step Solution
- Step 1: Write the proportion equation
661,616.08 : 913,238.12 = 375,326.48 : x - Step 2: Convert to fraction form
661,616.08/913,238.12 = 375,326.48/x - Step 3: Cross multiply
661,616.08x = 913,238.12 × 375,326.48 - Step 4: Simplify right side
661,616.08x = 342,762,448,981.42 - Step 5: Solve for x
x = 342,762,448,981.42/661,616.08 - Step 6: Final answer
x = 518,068.50
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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.