Finding the Fourth Proportional to 869,404.35, 1,199,663.55 and 482,215.17
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Solution
The fourth proportional to 869,404.35, 1,199,663.55 and 482,215.17 is: 665,393.45
Step by Step Solution
- Step 1: Write the proportion equation
869,404.35 : 1,199,663.55 = 482,215.17 : x - Step 2: Convert to fraction form
869,404.35/1,199,663.55 = 482,215.17/x - Step 3: Cross multiply
869,404.35x = 1,199,663.55 × 482,215.17 - Step 4: Simplify right side
869,404.35x = 578,495,962,706.05 - Step 5: Solve for x
x = 578,495,962,706.05/869,404.35 - Step 6: Final answer
x = 665,393.45
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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.