Finding the Fourth Proportional to 671,780.68, 926,988.80 and 413,616.68
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Solution
The fourth proportional to 671,780.68, 926,988.80 and 413,616.68 is: 570,748.82
Step by Step Solution
- Step 1: Write the proportion equation
671,780.68 : 926,988.80 = 413,616.68 : x - Step 2: Convert to fraction form
671,780.68/926,988.80 = 413,616.68/x - Step 3: Cross multiply
671,780.68x = 926,988.80 × 413,616.68 - Step 4: Simplify right side
671,780.68x = 383,418,029,853.18 - Step 5: Solve for x
x = 383,418,029,853.18/671,780.68 - Step 6: Final answer
x = 570,748.82
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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.