Finding the Fourth Proportional to 669,539.12, 923,959.80 and 401,267.12
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Solution
The fourth proportional to 669,539.12, 923,959.80 and 401,267.12 is: 553,746.12
Step by Step Solution
- Step 1: Write the proportion equation
669,539.12 : 923,959.80 = 401,267.12 : x - Step 2: Convert to fraction form
669,539.12/923,959.80 = 401,267.12/x - Step 3: Cross multiply
669,539.12x = 923,959.80 × 401,267.12 - Step 4: Simplify right side
669,539.12x = 370,754,687,941.78 - Step 5: Solve for x
x = 370,754,687,941.78/669,539.12 - Step 6: Final answer
x = 553,746.12
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1.5x scale
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.