Finding the Fourth Proportional to 808,320.68, 1,115,456.84 and 445,759.80
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Solution
The fourth proportional to 808,320.68, 1,115,456.84 and 445,759.80 is: 615,134.35
Step by Step Solution
- Step 1: Write the proportion equation
808,320.68 : 1,115,456.84 = 445,759.80 : x - Step 2: Convert to fraction form
808,320.68/1,115,456.84 = 445,759.80/x - Step 3: Cross multiply
808,320.68x = 1,115,456.84 × 445,759.80 - Step 4: Simplify right side
808,320.68x = 497,225,817,907.03 - Step 5: Solve for x
x = 497,225,817,907.03/808,320.68 - Step 6: Final answer
x = 615,134.35
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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.