Finding the Fourth Proportional to 771,117.14, 1,063,600.74 and 538,155.15
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Solution
The fourth proportional to 771,117.14, 1,063,600.74 and 538,155.15 is: 742,276.61
Step by Step Solution
- Step 1: Write the proportion equation
771,117.14 : 1,063,600.74 = 538,155.15 : x - Step 2: Convert to fraction form
771,117.14/1,063,600.74 = 538,155.15/x - Step 3: Cross multiply
771,117.14x = 1,063,600.74 × 538,155.15 - Step 4: Simplify right side
771,117.14x = 572,382,215,774.81 - Step 5: Solve for x
x = 572,382,215,774.81/771,117.14 - Step 6: Final answer
x = 742,276.61
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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.