Finding the Fourth Proportional to 758,969.12, 1,047,337.08 and 419,417.12
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Solution
The fourth proportional to 758,969.12, 1,047,337.08 and 419,417.12 is: 578,773.35
Step by Step Solution
- Step 1: Write the proportion equation
758,969.12 : 1,047,337.08 = 419,417.12 : x - Step 2: Convert to fraction form
758,969.12/1,047,337.08 = 419,417.12/x - Step 3: Cross multiply
758,969.12x = 1,047,337.08 × 419,417.12 - Step 4: Simplify right side
758,969.12x = 439,271,101,762.81 - Step 5: Solve for x
x = 439,271,101,762.81/758,969.12 - Step 6: Final answer
x = 578,773.35
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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.