Finding the Fourth Proportional to 907,423.40, 1,361,135.10 and 817,221.80
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Solution
The fourth proportional to 907,423.40, 1,361,135.10 and 817,221.80 is: 1,225,832.70
Step by Step Solution
- Step 1: Write the proportion equation
907,423.40 : 1,361,135.10 = 817,221.80 : x - Step 2: Convert to fraction form
907,423.40/1,361,135.10 = 817,221.80/x - Step 3: Cross multiply
907,423.40x = 1,361,135.10 × 817,221.80 - Step 4: Simplify right side
907,423.40x = 1,112,349,276,465.18 - Step 5: Solve for x
x = 1,112,349,276,465.18/907,423.40 - Step 6: Final answer
x = 1,225,832.70
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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.