Finding the Fourth Proportional to 530,276.50, 731,781.69 and 291,812.50
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Solution
The fourth proportional to 530,276.50, 731,781.69 and 291,812.50 is: 402,701.32
Step by Step Solution
- Step 1: Write the proportion equation
530,276.50 : 731,781.69 = 291,812.50 : x - Step 2: Convert to fraction form
530,276.50/731,781.69 = 291,812.50/x - Step 3: Cross multiply
530,276.50x = 731,781.69 × 291,812.50 - Step 4: Simplify right side
530,276.50x = 213,543,044,413.13 - Step 5: Solve for x
x = 213,543,044,413.13/530,276.50 - Step 6: Final answer
x = 402,701.32
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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.