Finding the Fourth Proportional to 977,998.74, 1,349,703.05 and 548,306.70
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Solution
The fourth proportional to 977,998.74, 1,349,703.05 and 548,306.70 is: 756,699.57
Step by Step Solution
- Step 1: Write the proportion equation
977,998.74 : 1,349,703.05 = 548,306.70 : x - Step 2: Convert to fraction form
977,998.74/1,349,703.05 = 548,306.70/x - Step 3: Cross multiply
977,998.74x = 1,349,703.05 × 548,306.70 - Step 4: Simplify right side
977,998.74x = 740,051,225,325.44 - Step 5: Solve for x
x = 740,051,225,325.44/977,998.74 - Step 6: Final answer
x = 756,699.57
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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.