Finding the Fourth Proportional to 1,535,346.88, 2,117,681.64 and 1,331,032.48
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Solution
The fourth proportional to 1,535,346.88, 2,117,681.64 and 1,331,032.48 is: 1,835,873.76
Step by Step Solution
- Step 1: Write the proportion equation
1,535,346.88 : 2,117,681.64 = 1,331,032.48 : x - Step 2: Convert to fraction form
1,535,346.88/2,117,681.64 = 1,331,032.48/x - Step 3: Cross multiply
1,535,346.88x = 2,117,681.64 × 1,331,032.48 - Step 4: Simplify right side
1,535,346.88x = 2,818,703,045,139.67 - Step 5: Solve for x
x = 2,818,703,045,139.67/1,535,346.88 - Step 6: Final answer
x = 1,835,873.76
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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.