Finding the Fourth Proportional to 618,807.40, 854,014.68 and 346,875.80
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Solution
The fourth proportional to 618,807.40, 854,014.68 and 346,875.80 is: 478,722.50
Step by Step Solution
- Step 1: Write the proportion equation
618,807.40 : 854,014.68 = 346,875.80 : x - Step 2: Convert to fraction form
618,807.40/854,014.68 = 346,875.80/x - Step 3: Cross multiply
618,807.40x = 854,014.68 × 346,875.80 - Step 4: Simplify right side
618,807.40x = 296,237,025,336.74 - Step 5: Solve for x
x = 296,237,025,336.74/618,807.40 - Step 6: Final answer
x = 478,722.50
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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.