Finding the Fourth Proportional to 875,031.13, 1,207,543.76 and 472,623.13
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Solution
The fourth proportional to 875,031.13, 1,207,543.76 and 472,623.13 is: 652,220.35
Step by Step Solution
- Step 1: Write the proportion equation
875,031.13 : 1,207,543.76 = 472,623.13 : x - Step 2: Convert to fraction form
875,031.13/1,207,543.76 = 472,623.13/x - Step 3: Cross multiply
875,031.13x = 1,207,543.76 × 472,623.13 - Step 4: Simplify right side
875,031.13x = 570,713,111,463.17 - Step 5: Solve for x
x = 570,713,111,463.17/875,031.13 - Step 6: Final answer
x = 652,220.35
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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.