Finding the Fourth Proportional to 657,585.14, 907,398.21 and 381,889.19
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Solution
The fourth proportional to 657,585.14, 907,398.21 and 381,889.19 is: 526,966.85
Step by Step Solution
- Step 1: Write the proportion equation
657,585.14 : 907,398.21 = 381,889.19 : x - Step 2: Convert to fraction form
657,585.14/907,398.21 = 381,889.19/x - Step 3: Cross multiply
657,585.14x = 907,398.21 × 381,889.19 - Step 4: Simplify right side
657,585.14x = 346,525,567,424.35 - Step 5: Solve for x
x = 346,525,567,424.35/657,585.14 - Step 6: Final answer
x = 526,966.85
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1.5x scale
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.