Finding the Fourth Proportional to 809,656.68, 1,117,424.74 and 470,124.94
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Solution
The fourth proportional to 809,656.68, 1,117,424.74 and 470,124.94 is: 648,829.62
Step by Step Solution
- Step 1: Write the proportion equation
809,656.68 : 1,117,424.74 = 470,124.94 : x - Step 2: Convert to fraction form
809,656.68/1,117,424.74 = 470,124.94/x - Step 3: Cross multiply
809,656.68x = 1,117,424.74 × 470,124.94 - Step 4: Simplify right side
809,656.68x = 525,329,238,847.02 - Step 5: Solve for x
x = 525,329,238,847.02/809,656.68 - Step 6: Final answer
x = 648,829.62
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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.