Finding the Fourth Proportional to 745,707.24, 1,029,101.58 and 423,406.62
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Solution
The fourth proportional to 745,707.24, 1,029,101.58 and 423,406.62 is: 584,315.66
Step by Step Solution
- Step 1: Write the proportion equation
745,707.24 : 1,029,101.58 = 423,406.62 : x - Step 2: Convert to fraction form
745,707.24/1,029,101.58 = 423,406.62/x - Step 3: Cross multiply
745,707.24x = 1,029,101.58 × 423,406.62 - Step 4: Simplify right side
745,707.24x = 435,728,421,624.46 - Step 5: Solve for x
x = 435,728,421,624.46/745,707.24 - Step 6: Final answer
x = 584,315.66
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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.