Finding the Fourth Proportional to 390,746.23, 586,112.96 and 124,503.14
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Solution
The fourth proportional to 390,746.23, 586,112.96 and 124,503.14 is: 186,752.68
Step by Step Solution
- Step 1: Write the proportion equation
390,746.23 : 586,112.96 = 124,503.14 : x - Step 2: Convert to fraction form
390,746.23/586,112.96 = 124,503.14/x - Step 3: Cross multiply
390,746.23x = 586,112.96 × 124,503.14 - Step 4: Simplify right side
390,746.23x = 72,972,905,691.23 - Step 5: Solve for x
x = 72,972,905,691.23/390,746.23 - Step 6: Final answer
x = 186,752.68
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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.