Finding the Fourth Proportional to 626,688.68, 864,739.14 and 358,364.84
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Solution
The fourth proportional to 626,688.68, 864,739.14 and 358,364.84 is: 494,491.31
Step by Step Solution
- Step 1: Write the proportion equation
626,688.68 : 864,739.14 = 358,364.84 : x - Step 2: Convert to fraction form
626,688.68/864,739.14 = 358,364.84/x - Step 3: Cross multiply
626,688.68x = 864,739.14 × 358,364.84 - Step 4: Simplify right side
626,688.68x = 309,892,103,547.84 - Step 5: Solve for x
x = 309,892,103,547.84/626,688.68 - Step 6: Final answer
x = 494,491.31
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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.