Finding the Fourth Proportional to 900,415.76, 1,242,371.40 and 537,773.84
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Solution
The fourth proportional to 900,415.76, 1,242,371.40 and 537,773.84 is: 742,007.05
Step by Step Solution
- Step 1: Write the proportion equation
900,415.76 : 1,242,371.40 = 537,773.84 : x - Step 2: Convert to fraction form
900,415.76/1,242,371.40 = 537,773.84/x - Step 3: Cross multiply
900,415.76x = 1,242,371.40 × 537,773.84 - Step 4: Simplify right side
900,415.76x = 668,114,838,484.18 - Step 5: Solve for x
x = 668,114,838,484.18/900,415.76 - Step 6: Final answer
x = 742,007.05
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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.