Finding the Fourth Proportional to 903,443.98, 1,246,742.13 and 489,974.62
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Solution
The fourth proportional to 903,443.98, 1,246,742.13 and 489,974.62 is: 676,159.25
Step by Step Solution
- Step 1: Write the proportion equation
903,443.98 : 1,246,742.13 = 489,974.62 : x - Step 2: Convert to fraction form
903,443.98/1,246,742.13 = 489,974.62/x - Step 3: Cross multiply
903,443.98x = 1,246,742.13 × 489,974.62 - Step 4: Simplify right side
903,443.98x = 610,872,001,384.74 - Step 5: Solve for x
x = 610,872,001,384.74/903,443.98 - Step 6: Final answer
x = 676,159.25
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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.