Finding the Fourth Proportional to 861,560.68, 1,188,925.86 and 479,574.76
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Solution
The fourth proportional to 861,560.68, 1,188,925.86 and 479,574.76 is: 661,797.65
Step by Step Solution
- Step 1: Write the proportion equation
861,560.68 : 1,188,925.86 = 479,574.76 : x - Step 2: Convert to fraction form
861,560.68/1,188,925.86 = 479,574.76/x - Step 3: Cross multiply
861,560.68x = 1,188,925.86 × 479,574.76 - Step 4: Simplify right side
861,560.68x = 570,178,833,967.29 - Step 5: Solve for x
x = 570,178,833,967.29/861,560.68 - Step 6: Final answer
x = 661,797.65
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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.