Finding the Fourth Proportional to 740,632.20, 1,110,948.30 and 651,985.80
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Solution
The fourth proportional to 740,632.20, 1,110,948.30 and 651,985.80 is: 977,978.70
Step by Step Solution
- Step 1: Write the proportion equation
740,632.20 : 1,110,948.30 = 651,985.80 : x - Step 2: Convert to fraction form
740,632.20/1,110,948.30 = 651,985.80/x - Step 3: Cross multiply
740,632.20x = 1,110,948.30 × 651,985.80 - Step 4: Simplify right side
740,632.20x = 724,322,516,134.14 - Step 5: Solve for x
x = 724,322,516,134.14/740,632.20 - Step 6: Final answer
x = 977,978.70
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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.