Finding the Fourth Proportional to 977,792.80, 1,349,329.98 and 542,207.74
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Solution
The fourth proportional to 977,792.80, 1,349,329.98 and 542,207.74 is: 748,233.33
Step by Step Solution
- Step 1: Write the proportion equation
977,792.80 : 1,349,329.98 = 542,207.74 : x - Step 2: Convert to fraction form
977,792.80/1,349,329.98 = 542,207.74/x - Step 3: Cross multiply
977,792.80x = 1,349,329.98 × 542,207.74 - Step 4: Simplify right side
977,792.80x = 731,617,158,970.05 - Step 5: Solve for x
x = 731,617,158,970.05/977,792.80 - Step 6: Final answer
x = 748,233.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.