Finding the Fourth Proportional to 688,068.92, 949,536.06 and 386,265.08
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Solution
The fourth proportional to 688,068.92, 949,536.06 and 386,265.08 is: 533,046.34
Step by Step Solution
- Step 1: Write the proportion equation
688,068.92 : 949,536.06 = 386,265.08 : x - Step 2: Convert to fraction form
688,068.92/949,536.06 = 386,265.08/x - Step 3: Cross multiply
688,068.92x = 949,536.06 × 386,265.08 - Step 4: Simplify right side
688,068.92x = 366,772,622,178.79 - Step 5: Solve for x
x = 366,772,622,178.79/688,068.92 - Step 6: Final answer
x = 533,046.34
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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.