Finding the Fourth Proportional to 658,713.18, 908,904.56 and 368,330.06
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Solution
The fourth proportional to 658,713.18, 908,904.56 and 368,330.06 is: 508,228.59
Step by Step Solution
- Step 1: Write the proportion equation
658,713.18 : 908,904.56 = 368,330.06 : x - Step 2: Convert to fraction form
658,713.18/908,904.56 = 368,330.06/x - Step 3: Cross multiply
658,713.18x = 908,904.56 × 368,330.06 - Step 4: Simplify right side
658,713.18x = 334,776,871,119.07 - Step 5: Solve for x
x = 334,776,871,119.07/658,713.18 - Step 6: Final answer
x = 508,228.59
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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.