Finding the Fourth Proportional to 1,621,840.50, 2,430,398.70 and 779,408.10
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Solution
The fourth proportional to 1,621,840.50, 2,430,398.70 and 779,408.10 is: 1,167,977.02
Step by Step Solution
- Step 1: Write the proportion equation
1,621,840.50 : 2,430,398.70 = 779,408.10 : x - Step 2: Convert to fraction form
1,621,840.50/2,430,398.70 = 779,408.10/x - Step 3: Cross multiply
1,621,840.50x = 2,430,398.70 × 779,408.10 - Step 4: Simplify right side
1,621,840.50x = 1,894,272,433,009.47 - Step 5: Solve for x
x = 1,894,272,433,009.47/1,621,840.50 - Step 6: Final answer
x = 1,167,977.02
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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.