Finding the Fourth Proportional to 530,471.16, 732,049.38 and 288,752.99
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Solution
The fourth proportional to 530,471.16, 732,049.38 and 288,752.99 is: 398,478.67
Step by Step Solution
- Step 1: Write the proportion equation
530,471.16 : 732,049.38 = 288,752.99 : x - Step 2: Convert to fraction form
530,471.16/732,049.38 = 288,752.99/x - Step 3: Cross multiply
530,471.16x = 732,049.38 × 288,752.99 - Step 4: Simplify right side
530,471.16x = 211,381,443,642.40 - Step 5: Solve for x
x = 211,381,443,642.40/530,471.16 - Step 6: Final answer
x = 398,478.67
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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.