Finding the Fourth Proportional to 530,526.20, 732,103.74 and 288,803.76
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Solution
The fourth proportional to 530,526.20, 732,103.74 and 288,803.76 is: 398,536.99
Step by Step Solution
- Step 1: Write the proportion equation
530,526.20 : 732,103.74 = 288,803.76 : x - Step 2: Convert to fraction form
530,526.20/732,103.74 = 288,803.76/x - Step 3: Cross multiply
530,526.20x = 732,103.74 × 288,803.76 - Step 4: Simplify right side
530,526.20x = 211,434,312,822.06 - Step 5: Solve for x
x = 211,434,312,822.06/530,526.20 - Step 6: Final answer
x = 398,536.99
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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.