Finding the Fourth Proportional to 1,058,808.06, 1,588,508.55 and 428,164.74
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Solution
The fourth proportional to 1,058,808.06, 1,588,508.55 and 428,164.74 is: 642,366.99
Step by Step Solution
- Step 1: Write the proportion equation
1,058,808.06 : 1,588,508.55 = 428,164.74 : x - Step 2: Convert to fraction form
1,058,808.06/1,588,508.55 = 428,164.74/x - Step 3: Cross multiply
1,058,808.06x = 1,588,508.55 × 428,164.74 - Step 4: Simplify right side
1,058,808.06x = 680,143,350,298.53 - Step 5: Solve for x
x = 680,143,350,298.53/1,058,808.06 - Step 6: Final answer
x = 642,366.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.