Finding the Fourth Proportional to 742,106.74, 1,024,109.26 and 402,574.99
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Solution
The fourth proportional to 742,106.74, 1,024,109.26 and 402,574.99 is: 555,554.55
Step by Step Solution
- Step 1: Write the proportion equation
742,106.74 : 1,024,109.26 = 402,574.99 : x - Step 2: Convert to fraction form
742,106.74/1,024,109.26 = 402,574.99/x - Step 3: Cross multiply
742,106.74x = 1,024,109.26 × 402,574.99 - Step 4: Simplify right side
742,106.74x = 412,280,775,103.41 - Step 5: Solve for x
x = 412,280,775,103.41/742,106.74 - Step 6: Final answer
x = 555,554.55
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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.