Finding the Fourth Proportional to 898,434.12, 1,239,831.96 and 490,530.06
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Solution
The fourth proportional to 898,434.12, 1,239,831.96 and 490,530.06 is: 676,927.59
Step by Step Solution
- Step 1: Write the proportion equation
898,434.12 : 1,239,831.96 = 490,530.06 : x - Step 2: Convert to fraction form
898,434.12/1,239,831.96 = 490,530.06/x - Step 3: Cross multiply
898,434.12x = 1,239,831.96 × 490,530.06 - Step 4: Simplify right side
898,434.12x = 608,174,845,728.72 - Step 5: Solve for x
x = 608,174,845,728.72/898,434.12 - Step 6: Final answer
x = 676,927.59
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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.