Finding the Fourth Proportional to 709,924.08, 979,697.28 and 387,636.96
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Solution
The fourth proportional to 709,924.08, 979,697.28 and 387,636.96 is: 534,940.12
Step by Step Solution
- Step 1: Write the proportion equation
709,924.08 : 979,697.28 = 387,636.96 : x - Step 2: Convert to fraction form
709,924.08/979,697.28 = 387,636.96/x - Step 3: Cross multiply
709,924.08x = 979,697.28 × 387,636.96 - Step 4: Simplify right side
709,924.08x = 379,766,875,339.47 - Step 5: Solve for x
x = 379,766,875,339.47/709,924.08 - Step 6: Final answer
x = 534,940.12
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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.