Finding the Fourth Proportional to 742,135.66, 1,024,149.12 and 402,603.88
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Solution
The fourth proportional to 742,135.66, 1,024,149.12 and 402,603.88 is: 555,594.39
Step by Step Solution
- Step 1: Write the proportion equation
742,135.66 : 1,024,149.12 = 402,603.88 : x - Step 2: Convert to fraction form
742,135.66/1,024,149.12 = 402,603.88/x - Step 3: Cross multiply
742,135.66x = 1,024,149.12 × 402,603.88 - Step 4: Simplify right side
742,135.66x = 412,326,409,410.59 - Step 5: Solve for x
x = 412,326,409,410.59/742,135.66 - Step 6: Final answer
x = 555,594.39
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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.