Finding the Fourth Proportional to 489,878.19, 734,863.75 and 190,381.90
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Solution
The fourth proportional to 489,878.19, 734,863.75 and 190,381.90 is: 285,590.91
Step by Step Solution
- Step 1: Write the proportion equation
489,878.19 : 734,863.75 = 190,381.90 : x - Step 2: Convert to fraction form
489,878.19/734,863.75 = 190,381.90/x - Step 3: Cross multiply
489,878.19x = 734,863.75 × 190,381.90 - Step 4: Simplify right side
489,878.19x = 139,904,756,966.13 - Step 5: Solve for x
x = 139,904,756,966.13/489,878.19 - Step 6: Final answer
x = 285,590.91
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.