Finding the Fourth Proportional to 1,390,918.68, 2,086,378.05 and 759,488.04
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Solution
The fourth proportional to 1,390,918.68, 2,086,378.05 and 759,488.04 is: 1,139,232.08
Step by Step Solution
- Step 1: Write the proportion equation
1,390,918.68 : 2,086,378.05 = 759,488.04 : x - Step 2: Convert to fraction form
1,390,918.68/2,086,378.05 = 759,488.04/x - Step 3: Cross multiply
1,390,918.68x = 2,086,378.05 × 759,488.04 - Step 4: Simplify right side
1,390,918.68x = 1,584,579,175,893.52 - Step 5: Solve for x
x = 1,584,579,175,893.52/1,390,918.68 - Step 6: Final answer
x = 1,139,232.08
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.