Finding the Fourth Proportional to 786,430.70, 1,177,108.74 and 406,828.71
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Solution
The fourth proportional to 786,430.70, 1,177,108.74 and 406,828.71 is: 608,930.49
Step by Step Solution
- Step 1: Write the proportion equation
786,430.70 : 1,177,108.74 = 406,828.71 : x - Step 2: Convert to fraction form
786,430.70/1,177,108.74 = 406,828.71/x - Step 3: Cross multiply
786,430.70x = 1,177,108.74 × 406,828.71 - Step 4: Simplify right side
786,430.70x = 478,881,630,223.93 - Step 5: Solve for x
x = 478,881,630,223.93/786,430.70 - Step 6: Final answer
x = 608,930.49
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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.