Finding the Fourth Proportional to 1,136,981.76, 1,569,009.48 and 620,715.84
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Solution
The fourth proportional to 1,136,981.76, 1,569,009.48 and 620,715.84 is: 856,574.02
Step by Step Solution
- Step 1: Write the proportion equation
1,136,981.76 : 1,569,009.48 = 620,715.84 : x - Step 2: Convert to fraction form
1,136,981.76/1,569,009.48 = 620,715.84/x - Step 3: Cross multiply
1,136,981.76x = 1,569,009.48 × 620,715.84 - Step 4: Simplify right side
1,136,981.76x = 973,909,037,346.16 - Step 5: Solve for x
x = 973,909,037,346.16/1,136,981.76 - Step 6: Final answer
x = 856,574.02
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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.