Finding the Fourth Proportional to 579,430.20, 869,145.30 and 549,905.70
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Solution
The fourth proportional to 579,430.20, 869,145.30 and 549,905.70 is: 824,858.55
Step by Step Solution
- Step 1: Write the proportion equation
579,430.20 : 869,145.30 = 549,905.70 : x - Step 2: Convert to fraction form
579,430.20/869,145.30 = 549,905.70/x - Step 3: Cross multiply
579,430.20x = 869,145.30 × 549,905.70 - Step 4: Simplify right side
579,430.20x = 477,947,954,598.21 - Step 5: Solve for x
x = 477,947,954,598.21/579,430.20 - Step 6: Final answer
x = 824,858.55
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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.