Finding the Fourth Proportional to 706,721.70, 1,057,490.55 and 520,097.70
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Solution
The fourth proportional to 706,721.70, 1,057,490.55 and 520,097.70 is: 778,239.02
Step by Step Solution
- Step 1: Write the proportion equation
706,721.70 : 1,057,490.55 = 520,097.70 : x - Step 2: Convert to fraction form
706,721.70/1,057,490.55 = 520,097.70/x - Step 3: Cross multiply
706,721.70x = 1,057,490.55 × 520,097.70 - Step 4: Simplify right side
706,721.70x = 549,998,402,826.74 - Step 5: Solve for x
x = 549,998,402,826.74/706,721.70 - Step 6: Final answer
x = 778,239.02
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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.