Finding the Fourth Proportional to 472,669.12, 652,291.08 and 257,809.13
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Solution
The fourth proportional to 472,669.12, 652,291.08 and 257,809.13 is: 355,780.79
Step by Step Solution
- Step 1: Write the proportion equation
472,669.12 : 652,291.08 = 257,809.13 : x - Step 2: Convert to fraction form
472,669.12/652,291.08 = 257,809.13/x - Step 3: Cross multiply
472,669.12x = 652,291.08 × 257,809.13 - Step 4: Simplify right side
472,669.12x = 168,166,594,059.41 - Step 5: Solve for x
x = 168,166,594,059.41/472,669.12 - Step 6: Final answer
x = 355,780.79
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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.