Finding the Fourth Proportional to 564,301.68, 778,734.18 and 309,657.12
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Solution
The fourth proportional to 564,301.68, 778,734.18 and 309,657.12 is: 427,325.65
Step by Step Solution
- Step 1: Write the proportion equation
564,301.68 : 778,734.18 = 309,657.12 : x - Step 2: Convert to fraction form
564,301.68/778,734.18 = 309,657.12/x - Step 3: Cross multiply
564,301.68x = 778,734.18 × 309,657.12 - Step 4: Simplify right side
564,301.68x = 241,140,583,424.36 - Step 5: Solve for x
x = 241,140,583,424.36/564,301.68 - Step 6: Final answer
x = 427,325.65
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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.