Finding the Fourth Proportional to 828,985.80, 1,243,478.70 and 735,673.80
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Solution
The fourth proportional to 828,985.80, 1,243,478.70 and 735,673.80 is: 1,103,510.70
Step by Step Solution
- Step 1: Write the proportion equation
828,985.80 : 1,243,478.70 = 735,673.80 : x - Step 2: Convert to fraction form
828,985.80/1,243,478.70 = 735,673.80/x - Step 3: Cross multiply
828,985.80x = 1,243,478.70 × 735,673.80 - Step 4: Simplify right side
828,985.80x = 914,794,700,448.06 - Step 5: Solve for x
x = 914,794,700,448.06/828,985.80 - Step 6: Final answer
x = 1,103,510.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.