Finding the Fourth Proportional to 390,989.76, 586,535.40 and 110,513.76
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Solution
The fourth proportional to 390,989.76, 586,535.40 and 110,513.76 is: 165,784.99
Step by Step Solution
- Step 1: Write the proportion equation
390,989.76 : 586,535.40 = 110,513.76 : x - Step 2: Convert to fraction form
390,989.76/586,535.40 = 110,513.76/x - Step 3: Cross multiply
390,989.76x = 586,535.40 × 110,513.76 - Step 4: Simplify right side
390,989.76x = 64,820,232,427.10 - Step 5: Solve for x
x = 64,820,232,427.10/390,989.76 - Step 6: Final answer
x = 165,784.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.