Finding the Fourth Proportional to 688,067.92, 949,534.68 and 386,264.08
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Solution
The fourth proportional to 688,067.92, 949,534.68 and 386,264.08 is: 533,044.96
Step by Step Solution
- Step 1: Write the proportion equation
688,067.92 : 949,534.68 = 386,264.08 : x - Step 2: Convert to fraction form
688,067.92/949,534.68 = 386,264.08/x - Step 3: Cross multiply
688,067.92x = 949,534.68 × 386,264.08 - Step 4: Simplify right side
688,067.92x = 366,771,139,598.29 - Step 5: Solve for x
x = 366,771,139,598.29/688,067.92 - Step 6: Final answer
x = 533,044.96
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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.