Finding the Fourth Proportional to 538,373.18, 742,987.62 and 296,655.47
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Solution
The fourth proportional to 538,373.18, 742,987.62 and 296,655.47 is: 409,402.52
Step by Step Solution
- Step 1: Write the proportion equation
538,373.18 : 742,987.62 = 296,655.47 : x - Step 2: Convert to fraction form
538,373.18/742,987.62 = 296,655.47/x - Step 3: Cross multiply
538,373.18x = 742,987.62 × 296,655.47 - Step 4: Simplify right side
538,373.18x = 220,411,337,344.11 - Step 5: Solve for x
x = 220,411,337,344.11/538,373.18 - Step 6: Final answer
x = 409,402.52
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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.