Finding the Fourth Proportional to 1,011,129.84, 1,516,971.84 and 442,407.84
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Solution
The fourth proportional to 1,011,129.84, 1,516,971.84 and 442,407.84 is: 663,732.99
Step by Step Solution
- Step 1: Write the proportion equation
1,011,129.84 : 1,516,971.84 = 442,407.84 : x - Step 2: Convert to fraction form
1,011,129.84/1,516,971.84 = 442,407.84/x - Step 3: Cross multiply
1,011,129.84x = 1,516,971.84 × 442,407.84 - Step 4: Simplify right side
1,011,129.84x = 671,120,235,075.23 - Step 5: Solve for x
x = 671,120,235,075.23/1,011,129.84 - Step 6: Final answer
x = 663,732.99
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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.