Finding the Fourth Proportional to 513,073.01, 708,040.34 and 309,132.53
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Solution
The fourth proportional to 513,073.01, 708,040.34 and 309,132.53 is: 426,602.64
Step by Step Solution
- Step 1: Write the proportion equation
513,073.01 : 708,040.34 = 309,132.53 : x - Step 2: Convert to fraction form
513,073.01/708,040.34 = 309,132.53/x - Step 3: Cross multiply
513,073.01x = 708,040.34 × 309,132.53 - Step 4: Simplify right side
513,073.01x = 218,878,298,383.43 - Step 5: Solve for x
x = 218,878,298,383.43/513,073.01 - Step 6: Final answer
x = 426,602.64
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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.