Finding the Fourth Proportional to 771,653.16, 1,064,879.28 and 427,489.74
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Solution
The fourth proportional to 771,653.16, 1,064,879.28 and 427,489.74 is: 589,934.69
Step by Step Solution
- Step 1: Write the proportion equation
771,653.16 : 1,064,879.28 = 427,489.74 : x - Step 2: Convert to fraction form
771,653.16/1,064,879.28 = 427,489.74/x - Step 3: Cross multiply
771,653.16x = 1,064,879.28 × 427,489.74 - Step 4: Simplify right side
771,653.16x = 455,224,966,538.59 - Step 5: Solve for x
x = 455,224,966,538.59/771,653.16 - Step 6: Final answer
x = 589,934.69
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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.