Finding the Fourth Proportional to 742,512.04, 1,024,660.58 and 402,980.44
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Solution
The fourth proportional to 742,512.04, 1,024,660.58 and 402,980.44 is: 556,109.73
Step by Step Solution
- Step 1: Write the proportion equation
742,512.04 : 1,024,660.58 = 402,980.44 : x - Step 2: Convert to fraction form
742,512.04/1,024,660.58 = 402,980.44/x - Step 3: Cross multiply
742,512.04x = 1,024,660.58 × 402,980.44 - Step 4: Simplify right side
742,512.04x = 412,918,171,379.06 - Step 5: Solve for x
x = 412,918,171,379.06/742,512.04 - Step 6: Final answer
x = 556,109.73
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1.5x scale
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.