Finding the Fourth Proportional to 812,462.42, 1,122,366.02 and 648,904.19
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Solution
The fourth proportional to 812,462.42, 1,122,366.02 and 648,904.19 is: 896,420.55
Step by Step Solution
- Step 1: Write the proportion equation
812,462.42 : 1,122,366.02 = 648,904.19 : x - Step 2: Convert to fraction form
812,462.42/1,122,366.02 = 648,904.19/x - Step 3: Cross multiply
812,462.42x = 1,122,366.02 × 648,904.19 - Step 4: Simplify right side
812,462.42x = 728,308,004,235.27 - Step 5: Solve for x
x = 728,308,004,235.27/812,462.42 - Step 6: Final answer
x = 896,420.55
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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.