Finding the Fourth Proportional to 451,009.65, 621,894.58 and 287,406.99
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Solution
The fourth proportional to 451,009.65, 621,894.58 and 287,406.99 is: 396,303.82
Step by Step Solution
- Step 1: Write the proportion equation
451,009.65 : 621,894.58 = 287,406.99 : x - Step 2: Convert to fraction form
451,009.65/621,894.58 = 287,406.99/x - Step 3: Cross multiply
451,009.65x = 621,894.58 × 287,406.99 - Step 4: Simplify right side
451,009.65x = 178,736,849,335.11 - Step 5: Solve for x
x = 178,736,849,335.11/451,009.65 - Step 6: Final answer
x = 396,303.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.