Finding the Fourth Proportional to 991,031.28, 1,368,189.76 and 652,483.68
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Solution
The fourth proportional to 991,031.28, 1,368,189.76 and 652,483.68 is: 900,800.52
Step by Step Solution
- Step 1: Write the proportion equation
991,031.28 : 1,368,189.76 = 652,483.68 : x - Step 2: Convert to fraction form
991,031.28/1,368,189.76 = 652,483.68/x - Step 3: Cross multiply
991,031.28x = 1,368,189.76 × 652,483.68 - Step 4: Simplify right side
991,031.28x = 892,721,489,543.12 - Step 5: Solve for x
x = 892,721,489,543.12/991,031.28 - Step 6: Final answer
x = 900,800.52
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.