Finding the Fourth Proportional to 742,438.44, 1,024,565.68 and 402,906.68
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Solution
The fourth proportional to 742,438.44, 1,024,565.68 and 402,906.68 is: 556,011.56
Step by Step Solution
- Step 1: Write the proportion equation
742,438.44 : 1,024,565.68 = 402,906.68 : x - Step 2: Convert to fraction form
742,438.44/1,024,565.68 = 402,906.68/x - Step 3: Cross multiply
742,438.44x = 1,024,565.68 × 402,906.68 - Step 4: Simplify right side
742,438.44x = 412,804,356,570.74 - Step 5: Solve for x
x = 412,804,356,570.74/742,438.44 - Step 6: Final answer
x = 556,011.56
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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.