Finding the Fourth Proportional to 772,207.87, 1,157,303.01 and 430,637.66
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Solution
The fourth proportional to 772,207.87, 1,157,303.01 and 430,637.66 is: 645,393.91
Step by Step Solution
- Step 1: Write the proportion equation
772,207.87 : 1,157,303.01 = 430,637.66 : x - Step 2: Convert to fraction form
772,207.87/1,157,303.01 = 430,637.66/x - Step 3: Cross multiply
772,207.87x = 1,157,303.01 × 430,637.66 - Step 4: Simplify right side
772,207.87x = 498,378,260,137.36 - Step 5: Solve for x
x = 498,378,260,137.36/772,207.87 - Step 6: Final answer
x = 645,393.91
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.