Finding the Fourth Proportional to 1,239,731.84, 1,858,875.24 and 480,686.58
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Solution
The fourth proportional to 1,239,731.84, 1,858,875.24 and 480,686.58 is: 720,749.72
Step by Step Solution
- Step 1: Write the proportion equation
1,239,731.84 : 1,858,875.24 = 480,686.58 : x - Step 2: Convert to fraction form
1,239,731.84/1,858,875.24 = 480,686.58/x - Step 3: Cross multiply
1,239,731.84x = 1,858,875.24 × 480,686.58 - Step 4: Simplify right side
1,239,731.84x = 893,536,381,762.28 - Step 5: Solve for x
x = 893,536,381,762.28/1,239,731.84 - Step 6: Final answer
x = 720,749.72
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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.