Finding the Fourth Proportional to 1,900,828.46, 2,623,121.06 and 1,029,646.74
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Solution
The fourth proportional to 1,900,828.46, 2,623,121.06 and 1,029,646.74 is: 1,420,900.47
Step by Step Solution
- Step 1: Write the proportion equation
1,900,828.46 : 2,623,121.06 = 1,029,646.74 : x - Step 2: Convert to fraction form
1,900,828.46/2,623,121.06 = 1,029,646.74/x - Step 3: Cross multiply
1,900,828.46x = 2,623,121.06 × 1,029,646.74 - Step 4: Simplify right side
1,900,828.46x = 2,700,888,048,054.34 - Step 5: Solve for x
x = 2,700,888,048,054.34/1,900,828.46 - Step 6: Final answer
x = 1,420,900.47
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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.