Finding the Fourth Proportional to 1,915,409.68, 2,643,282.48 and 1,056,000.40
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Solution
The fourth proportional to 1,915,409.68, 2,643,282.48 and 1,056,000.40 is: 1,457,289.99
Step by Step Solution
- Step 1: Write the proportion equation
1,915,409.68 : 2,643,282.48 = 1,056,000.40 : x - Step 2: Convert to fraction form
1,915,409.68/2,643,282.48 = 1,056,000.40/x - Step 3: Cross multiply
1,915,409.68x = 2,643,282.48 × 1,056,000.40 - Step 4: Simplify right side
1,915,409.68x = 2,791,307,356,192.99 - Step 5: Solve for x
x = 2,791,307,356,192.99/1,915,409.68 - Step 6: Final answer
x = 1,457,289.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.