Finding the Fourth Proportional to 1,630,368.36, 2,249,978.67 and 905,216.13
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Solution
The fourth proportional to 1,630,368.36, 2,249,978.67 and 905,216.13 is: 1,249,237.31
Step by Step Solution
- Step 1: Write the proportion equation
1,630,368.36 : 2,249,978.67 = 905,216.13 : x - Step 2: Convert to fraction form
1,630,368.36/2,249,978.67 = 905,216.13/x - Step 3: Cross multiply
1,630,368.36x = 2,249,978.67 × 905,216.13 - Step 4: Simplify right side
1,630,368.36x = 2,036,716,984,239.95 - Step 5: Solve for x
x = 2,036,716,984,239.95/1,630,368.36 - Step 6: Final answer
x = 1,249,237.31
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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.