Finding the Fourth Proportional to 1,970,203.12, 2,956,158.12 and 1,058,321.57
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Solution
The fourth proportional to 1,970,203.12, 2,956,158.12 and 1,058,321.57 is: 1,587,940.79
Step by Step Solution
- Step 1: Write the proportion equation
1,970,203.12 : 2,956,158.12 = 1,058,321.57 : x - Step 2: Convert to fraction form
1,970,203.12/2,956,158.12 = 1,058,321.57/x - Step 3: Cross multiply
1,970,203.12x = 2,956,158.12 × 1,058,321.57 - Step 4: Simplify right side
1,970,203.12x = 3,128,565,902,726.65 - Step 5: Solve for x
x = 3,128,565,902,726.65/1,970,203.12 - Step 6: Final answer
x = 1,587,940.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.