Finding the Fourth Proportional to 3,078,430.02, 4,248,239.13 and 1,720,303.02
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Solution
The fourth proportional to 3,078,430.02, 4,248,239.13 and 1,720,303.02 is: 2,374,021.35
Step by Step Solution
- Step 1: Write the proportion equation
3,078,430.02 : 4,248,239.13 = 1,720,303.02 : x - Step 2: Convert to fraction form
3,078,430.02/4,248,239.13 = 1,720,303.02/x - Step 3: Cross multiply
3,078,430.02x = 4,248,239.13 × 1,720,303.02 - Step 4: Simplify right side
3,078,430.02x = 7,308,258,605,021.17 - Step 5: Solve for x
x = 7,308,258,605,021.17/3,078,430.02 - Step 6: Final answer
x = 2,374,021.35
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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.