Finding the Fourth Proportional to 813,435.35, 1,122,408.90 and 507,463.11
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Solution
The fourth proportional to 813,435.35, 1,122,408.90 and 507,463.11 is: 700,216.82
Step by Step Solution
- Step 1: Write the proportion equation
813,435.35 : 1,122,408.90 = 507,463.11 : x - Step 2: Convert to fraction form
813,435.35/1,122,408.90 = 507,463.11/x - Step 3: Cross multiply
813,435.35x = 1,122,408.90 × 507,463.11 - Step 4: Simplify right side
813,435.35x = 569,581,111,085.68 - Step 5: Solve for x
x = 569,581,111,085.68/813,435.35 - Step 6: Final answer
x = 700,216.82
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1.5x scale
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.