Finding the Fourth Proportional to 838,106.30, 1,156,708.60 and 470,624.70
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Solution
The fourth proportional to 838,106.30, 1,156,708.60 and 470,624.70 is: 649,530.54
Step by Step Solution
- Step 1: Write the proportion equation
838,106.30 : 1,156,708.60 = 470,624.70 : x - Step 2: Convert to fraction form
838,106.30/1,156,708.60 = 470,624.70/x - Step 3: Cross multiply
838,106.30x = 1,156,708.60 × 470,624.70 - Step 4: Simplify right side
838,106.30x = 544,375,637,862.42 - Step 5: Solve for x
x = 544,375,637,862.42/838,106.30 - Step 6: Final answer
x = 649,530.54
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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.