Finding the Fourth Proportional to 742,077.19, 1,024,069.13 and 402,547.87
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Solution
The fourth proportional to 742,077.19, 1,024,069.13 and 402,547.87 is: 555,517.48
Step by Step Solution
- Step 1: Write the proportion equation
742,077.19 : 1,024,069.13 = 402,547.87 : x - Step 2: Convert to fraction form
742,077.19/1,024,069.13 = 402,547.87/x - Step 3: Cross multiply
742,077.19x = 1,024,069.13 × 402,547.87 - Step 4: Simplify right side
742,077.19x = 412,236,847,014.25 - Step 5: Solve for x
x = 412,236,847,014.25/742,077.19 - Step 6: Final answer
x = 555,517.48
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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.