Finding the Fourth Proportional to 478,472.99, 717,685.62 and 178,931.55
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Solution
The fourth proportional to 478,472.99, 717,685.62 and 178,931.55 is: 268,388.39
Step by Step Solution
- Step 1: Write the proportion equation
478,472.99 : 717,685.62 = 178,931.55 : x - Step 2: Convert to fraction form
478,472.99/717,685.62 = 178,931.55/x - Step 3: Cross multiply
478,472.99x = 717,685.62 × 178,931.55 - Step 4: Simplify right side
478,472.99x = 128,416,596,810.88 - Step 5: Solve for x
x = 128,416,596,810.88/478,472.99 - Step 6: Final answer
x = 268,388.39
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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.