Finding the Fourth Proportional to 935,655.60, 1,291,203.81 and 505,934.70
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Solution
The fourth proportional to 935,655.60, 1,291,203.81 and 505,934.70 is: 698,189.39
Step by Step Solution
- Step 1: Write the proportion equation
935,655.60 : 1,291,203.81 = 505,934.70 : x - Step 2: Convert to fraction form
935,655.60/1,291,203.81 = 505,934.70/x - Step 3: Cross multiply
935,655.60x = 1,291,203.81 × 505,934.70 - Step 4: Simplify right side
935,655.60x = 653,264,812,251.21 - Step 5: Solve for x
x = 653,264,812,251.21/935,655.60 - Step 6: Final answer
x = 698,189.39
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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.