Finding the Fourth Proportional to 1,543,090.64, 2,128,972.98 and 999,642.98
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Solution
The fourth proportional to 1,543,090.64, 2,128,972.98 and 999,642.98 is: 1,379,188.52
Step by Step Solution
- Step 1: Write the proportion equation
1,543,090.64 : 2,128,972.98 = 999,642.98 : x - Step 2: Convert to fraction form
1,543,090.64/2,128,972.98 = 999,642.98/x - Step 3: Cross multiply
1,543,090.64x = 2,128,972.98 × 999,642.98 - Step 4: Simplify right side
1,543,090.64x = 2,128,212,894,066.68 - Step 5: Solve for x
x = 2,128,212,894,066.68/1,543,090.64 - Step 6: Final answer
x = 1,379,188.52
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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.