Finding the Fourth Proportional to 1,693,715.80, 2,337,242.08 and 1,005,417.12
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Solution
The fourth proportional to 1,693,715.80, 2,337,242.08 and 1,005,417.12 is: 1,387,424.74
Step by Step Solution
- Step 1: Write the proportion equation
1,693,715.80 : 2,337,242.08 = 1,005,417.12 : x - Step 2: Convert to fraction form
1,693,715.80/2,337,242.08 = 1,005,417.12/x - Step 3: Cross multiply
1,693,715.80x = 2,337,242.08 × 1,005,417.12 - Step 4: Simplify right side
1,693,715.80x = 2,349,903,200,816.41 - Step 5: Solve for x
x = 2,349,903,200,816.41/1,693,715.80 - Step 6: Final answer
x = 1,387,424.74
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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.