Finding the Fourth Proportional to 781,747.12, 1,172,686.44 and 249,343.84
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Solution
The fourth proportional to 781,747.12, 1,172,686.44 and 249,343.84 is: 374,036.73
Step by Step Solution
- Step 1: Write the proportion equation
781,747.12 : 1,172,686.44 = 249,343.84 : x - Step 2: Convert to fraction form
781,747.12/1,172,686.44 = 249,343.84/x - Step 3: Cross multiply
781,747.12x = 1,172,686.44 × 249,343.84 - Step 4: Simplify right side
781,747.12x = 292,402,140,065.53 - Step 5: Solve for x
x = 292,402,140,065.53/781,747.12 - Step 6: Final answer
x = 374,036.73
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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.