Finding the Fourth Proportional to 1,307,681.40, 1,961,518.68 and 348,137.04
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Solution
The fourth proportional to 1,307,681.40, 1,961,518.68 and 348,137.04 is: 522,204.65
Step by Step Solution
- Step 1: Write the proportion equation
1,307,681.40 : 1,961,518.68 = 348,137.04 : x - Step 2: Convert to fraction form
1,307,681.40/1,961,518.68 = 348,137.04/x - Step 3: Cross multiply
1,307,681.40x = 1,961,518.68 × 348,137.04 - Step 4: Simplify right side
1,307,681.40x = 682,877,307,159.91 - Step 5: Solve for x
x = 682,877,307,159.91/1,307,681.40 - Step 6: Final answer
x = 522,204.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.