Finding the Fourth Proportional to 507,652.20, 761,478.30 and 478,621.80
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Solution
The fourth proportional to 507,652.20, 761,478.30 and 478,621.80 is: 717,932.70
Step by Step Solution
- Step 1: Write the proportion equation
507,652.20 : 761,478.30 = 478,621.80 : x - Step 2: Convert to fraction form
507,652.20/761,478.30 = 478,621.80/x - Step 3: Cross multiply
507,652.20x = 761,478.30 × 478,621.80 - Step 4: Simplify right side
507,652.20x = 364,460,114,606.94 - Step 5: Solve for x
x = 364,460,114,606.94/507,652.20 - Step 6: Final answer
x = 717,932.70
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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.