Finding the Fourth Proportional to 982,907.61, 1,356,266.21 and 553,162.11
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Solution
The fourth proportional to 982,907.61, 1,356,266.21 and 553,162.11 is: 763,281.38
Step by Step Solution
- Step 1: Write the proportion equation
982,907.61 : 1,356,266.21 = 553,162.11 : x - Step 2: Convert to fraction form
982,907.61/1,356,266.21 = 553,162.11/x - Step 3: Cross multiply
982,907.61x = 1,356,266.21 × 553,162.11 - Step 4: Simplify right side
982,907.61x = 750,235,075,679.49 - Step 5: Solve for x
x = 750,235,075,679.49/982,907.61 - Step 6: Final answer
x = 763,281.38
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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.