Finding the Fourth Proportional to 779,701.68, 1,075,988.16 and 440,191.80
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Solution
The fourth proportional to 779,701.68, 1,075,988.16 and 440,191.80 is: 607,464.59
Step by Step Solution
- Step 1: Write the proportion equation
779,701.68 : 1,075,988.16 = 440,191.80 : x - Step 2: Convert to fraction form
779,701.68/1,075,988.16 = 440,191.80/x - Step 3: Cross multiply
779,701.68x = 1,075,988.16 × 440,191.80 - Step 4: Simplify right side
779,701.68x = 473,641,164,929.09 - Step 5: Solve for x
x = 473,641,164,929.09/779,701.68 - Step 6: Final answer
x = 607,464.59
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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.