Finding the Fourth Proportional to 1,390,615.84, 1,919,050.64 and 754,711.84
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Solution
The fourth proportional to 1,390,615.84, 1,919,050.64 and 754,711.84 is: 1,041,502.76
Step by Step Solution
- Step 1: Write the proportion equation
1,390,615.84 : 1,919,050.64 = 754,711.84 : x - Step 2: Convert to fraction form
1,390,615.84/1,919,050.64 = 754,711.84/x - Step 3: Cross multiply
1,390,615.84x = 1,919,050.64 × 754,711.84 - Step 4: Simplify right side
1,390,615.84x = 1,448,330,239,567.58 - Step 5: Solve for x
x = 1,448,330,239,567.58/1,390,615.84 - Step 6: Final answer
x = 1,041,502.76
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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.