Finding the Fourth Proportional to 1,129,856.88, 1,559,197.17 and 613,607.16
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Solution
The fourth proportional to 1,129,856.88, 1,559,197.17 and 613,607.16 is: 846,774.99
Step by Step Solution
- Step 1: Write the proportion equation
1,129,856.88 : 1,559,197.17 = 613,607.16 : x - Step 2: Convert to fraction form
1,129,856.88/1,559,197.17 = 613,607.16/x - Step 3: Cross multiply
1,129,856.88x = 1,559,197.17 × 613,607.16 - Step 4: Simplify right side
1,129,856.88x = 956,734,547,363.74 - Step 5: Solve for x
x = 956,734,547,363.74/1,129,856.88 - Step 6: Final answer
x = 846,774.99
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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.