Finding the Fourth Proportional to 867,417.12, 1,301,518.80 and 513,123.12
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Solution
The fourth proportional to 867,417.12, 1,301,518.80 and 513,123.12 is: 769,917.23
Step by Step Solution
- Step 1: Write the proportion equation
867,417.12 : 1,301,518.80 = 513,123.12 : x - Step 2: Convert to fraction form
867,417.12/1,301,518.80 = 513,123.12/x - Step 3: Cross multiply
867,417.12x = 1,301,518.80 × 513,123.12 - Step 4: Simplify right side
867,417.12x = 667,839,387,394.66 - Step 5: Solve for x
x = 667,839,387,394.66/867,417.12 - Step 6: Final answer
x = 769,917.23
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1.5x scale
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.