Finding the Fourth Proportional to 452,911.68, 679,366.72 and 120,487.68
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Solution
The fourth proportional to 452,911.68, 679,366.72 and 120,487.68 is: 180,731.31
Step by Step Solution
- Step 1: Write the proportion equation
452,911.68 : 679,366.72 = 120,487.68 : x - Step 2: Convert to fraction form
452,911.68/679,366.72 = 120,487.68/x - Step 3: Cross multiply
452,911.68x = 679,366.72 × 120,487.68 - Step 4: Simplify right side
452,911.68x = 81,855,319,962.01 - Step 5: Solve for x
x = 81,855,319,962.01/452,911.68 - Step 6: Final answer
x = 180,731.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.