Finding the Fourth Proportional to 838,423.47, 1,157,052.69 and 470,965.62
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Solution
The fourth proportional to 838,423.47, 1,157,052.69 and 470,965.62 is: 649,948.45
Step by Step Solution
- Step 1: Write the proportion equation
838,423.47 : 1,157,052.69 = 470,965.62 : x - Step 2: Convert to fraction form
838,423.47/1,157,052.69 = 470,965.62/x - Step 3: Cross multiply
838,423.47x = 1,157,052.69 × 470,965.62 - Step 4: Simplify right side
838,423.47x = 544,932,037,518.52 - Step 5: Solve for x
x = 544,932,037,518.52/838,423.47 - Step 6: Final answer
x = 649,948.45
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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.