Finding the Fourth Proportional to 1,187,709.60, 1,782,001.80 and 478,246.80
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Solution
The fourth proportional to 1,187,709.60, 1,782,001.80 and 478,246.80 is: 717,546.32
Step by Step Solution
- Step 1: Write the proportion equation
1,187,709.60 : 1,782,001.80 = 478,246.80 : x - Step 2: Convert to fraction form
1,187,709.60/1,782,001.80 = 478,246.80/x - Step 3: Cross multiply
1,187,709.60x = 1,782,001.80 × 478,246.80 - Step 4: Simplify right side
1,187,709.60x = 852,236,658,444.24 - Step 5: Solve for x
x = 852,236,658,444.24/1,187,709.60 - Step 6: Final answer
x = 717,546.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.