Finding the Fourth Proportional to 808,480, 1,115,687.28 and 445,937.68
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Solution
The fourth proportional to 808,480, 1,115,687.28 and 445,937.68 is: 615,385.66
Step by Step Solution
- Step 1: Write the proportion equation
808,480 : 1,115,687.28 = 445,937.68 : x - Step 2: Convert to fraction form
808,480/1,115,687.28 = 445,937.68/x - Step 3: Cross multiply
808,480x = 1,115,687.28 × 445,937.68 - Step 4: Simplify right side
808,480x = 497,526,997,248.71 - Step 5: Solve for x
x = 497,526,997,248.71/808,480 - Step 6: Final answer
x = 615,385.66
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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.