Finding the Fourth Proportional to 390,917.92, 586,386.96 and 106,610.80
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Solution
The fourth proportional to 390,917.92, 586,386.96 and 106,610.80 is: 159,918.95
Step by Step Solution
- Step 1: Write the proportion equation
390,917.92 : 586,386.96 = 106,610.80 : x - Step 2: Convert to fraction form
390,917.92/586,386.96 = 106,610.80/x - Step 3: Cross multiply
390,917.92x = 586,386.96 × 106,610.80 - Step 4: Simplify right side
390,917.92x = 62,515,182,915.17 - Step 5: Solve for x
x = 62,515,182,915.17/390,917.92 - Step 6: Final answer
x = 159,918.95
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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.