Finding the Fourth Proportional to 779,309.40, 1,071,318.62 and 670,011.09
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Solution
The fourth proportional to 779,309.40, 1,071,318.62 and 670,011.09 is: 921,065.95
Step by Step Solution
- Step 1: Write the proportion equation
779,309.40 : 1,071,318.62 = 670,011.09 : x - Step 2: Convert to fraction form
779,309.40/1,071,318.62 = 670,011.09/x - Step 3: Cross multiply
779,309.40x = 1,071,318.62 × 670,011.09 - Step 4: Simplify right side
779,309.40x = 717,795,356,323.50 - Step 5: Solve for x
x = 717,795,356,323.50/779,309.40 - Step 6: Final answer
x = 921,065.95
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.