Finding the Fourth Proportional to 742,777.68, 1,025,030.34 and 403,245.84
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Solution
The fourth proportional to 742,777.68, 1,025,030.34 and 403,245.84 is: 556,477.71
Step by Step Solution
- Step 1: Write the proportion equation
742,777.68 : 1,025,030.34 = 403,245.84 : x - Step 2: Convert to fraction form
742,777.68/1,025,030.34 = 403,245.84/x - Step 3: Cross multiply
742,777.68x = 1,025,030.34 × 403,245.84 - Step 4: Simplify right side
742,777.68x = 413,339,220,478.79 - Step 5: Solve for x
x = 413,339,220,478.79/742,777.68 - Step 6: Final answer
x = 556,477.71
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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.