Finding the Fourth Proportional to 898,363.80, 1,347,545.70 and 425,971.80
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Solution
The fourth proportional to 898,363.80, 1,347,545.70 and 425,971.80 is: 638,957.70
Step by Step Solution
- Step 1: Write the proportion equation
898,363.80 : 1,347,545.70 = 425,971.80 : x - Step 2: Convert to fraction form
898,363.80/1,347,545.70 = 425,971.80/x - Step 3: Cross multiply
898,363.80x = 1,347,545.70 × 425,971.80 - Step 4: Simplify right side
898,363.80x = 574,016,467,411.26 - Step 5: Solve for x
x = 574,016,467,411.26/898,363.80 - Step 6: Final answer
x = 638,957.70
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1.5x scale
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.