Finding the Fourth Proportional to 785,125.70, 1,177,688.55 and 726,805.70
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Solution
The fourth proportional to 785,125.70, 1,177,688.55 and 726,805.70 is: 1,090,208.55
Step by Step Solution
- Step 1: Write the proportion equation
785,125.70 : 1,177,688.55 = 726,805.70 : x - Step 2: Convert to fraction form
785,125.70/1,177,688.55 = 726,805.70/x - Step 3: Cross multiply
785,125.70x = 1,177,688.55 × 726,805.70 - Step 4: Simplify right side
785,125.70x = 855,950,750,964.74 - Step 5: Solve for x
x = 855,950,750,964.74/785,125.70 - Step 6: Final answer
x = 1,090,208.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.