Finding the Fourth Proportional to 690,393.08, 1,035,730.80 and 291,033.92
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Solution
The fourth proportional to 690,393.08, 1,035,730.80 and 291,033.92 is: 436,610.39
Step by Step Solution
- Step 1: Write the proportion equation
690,393.08 : 1,035,730.80 = 291,033.92 : x - Step 2: Convert to fraction form
690,393.08/1,035,730.80 = 291,033.92/x - Step 3: Cross multiply
690,393.08x = 1,035,730.80 × 291,033.92 - Step 4: Simplify right side
690,393.08x = 301,432,794,788.74 - Step 5: Solve for x
x = 301,432,794,788.74/690,393.08 - Step 6: Final answer
x = 436,610.39
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.