Finding the Fourth Proportional to 390,832.74, 586,291.59 and 124,530.66
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Solution
The fourth proportional to 390,832.74, 586,291.59 and 124,530.66 is: 186,809.53
Step by Step Solution
- Step 1: Write the proportion equation
390,832.74 : 586,291.59 = 124,530.66 : x - Step 2: Convert to fraction form
390,832.74/586,291.59 = 124,530.66/x - Step 3: Cross multiply
390,832.74x = 586,291.59 × 124,530.66 - Step 4: Simplify right side
390,832.74x = 73,011,278,655.15 - Step 5: Solve for x
x = 73,011,278,655.15/390,832.74 - Step 6: Final answer
x = 186,809.53
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.