Finding the Fourth Proportional to 621,113.67, 931,393.35 and 432,784.08
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Solution
The fourth proportional to 621,113.67, 931,393.35 and 432,784.08 is: 648,983.00
Step by Step Solution
- Step 1: Write the proportion equation
621,113.67 : 931,393.35 = 432,784.08 : x - Step 2: Convert to fraction form
621,113.67/931,393.35 = 432,784.08/x - Step 3: Cross multiply
621,113.67x = 931,393.35 × 432,784.08 - Step 4: Simplify right side
621,113.67x = 403,092,214,097.87 - Step 5: Solve for x
x = 403,092,214,097.87/621,113.67 - Step 6: Final answer
x = 648,983.00
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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.