Finding the Fourth Proportional to 808,551.71, 1,115,806.62 and 445,985.36
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Solution
The fourth proportional to 808,551.71, 1,115,806.62 and 445,985.36 is: 615,462.70
Step by Step Solution
- Step 1: Write the proportion equation
808,551.71 : 1,115,806.62 = 445,985.36 : x - Step 2: Convert to fraction form
808,551.71/1,115,806.62 = 445,985.36/x - Step 3: Cross multiply
808,551.71x = 1,115,806.62 × 445,985.36 - Step 4: Simplify right side
808,551.71x = 497,633,411,532.05 - Step 5: Solve for x
x = 497,633,411,532.05/808,551.71 - Step 6: Final answer
x = 615,462.70
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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.