Finding the Fourth Proportional to 776,996.76, 1,163,303.84 and 411,429.98
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Solution
The fourth proportional to 776,996.76, 1,163,303.84 and 411,429.98 is: 615,984.65
Step by Step Solution
- Step 1: Write the proportion equation
776,996.76 : 1,163,303.84 = 411,429.98 : x - Step 2: Convert to fraction form
776,996.76/1,163,303.84 = 411,429.98/x - Step 3: Cross multiply
776,996.76x = 1,163,303.84 × 411,429.98 - Step 4: Simplify right side
776,996.76x = 478,618,075,625.12 - Step 5: Solve for x
x = 478,618,075,625.12/776,996.76 - Step 6: Final answer
x = 615,984.65
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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.