Finding the Fourth Proportional to 516,327.51, 712,541.12 and 286,905.99
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Solution
The fourth proportional to 516,327.51, 712,541.12 and 286,905.99 is: 395,935.35
Step by Step Solution
- Step 1: Write the proportion equation
516,327.51 : 712,541.12 = 286,905.99 : x - Step 2: Convert to fraction form
516,327.51/712,541.12 = 286,905.99/x - Step 3: Cross multiply
516,327.51x = 712,541.12 × 286,905.99 - Step 4: Simplify right side
516,327.51x = 204,432,314,014.78 - Step 5: Solve for x
x = 204,432,314,014.78/516,327.51 - Step 6: Final answer
x = 395,935.35
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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.