Finding the Fourth Proportional to 553,287.98, 762,619.64 and 391,935.98
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Solution
The fourth proportional to 553,287.98, 762,619.64 and 391,935.98 is: 540,221.52
Step by Step Solution
- Step 1: Write the proportion equation
553,287.98 : 762,619.64 = 391,935.98 : x - Step 2: Convert to fraction form
553,287.98/762,619.64 = 391,935.98/x - Step 3: Cross multiply
553,287.98x = 762,619.64 × 391,935.98 - Step 4: Simplify right side
553,287.98x = 298,898,075,970.65 - Step 5: Solve for x
x = 298,898,075,970.65/553,287.98 - Step 6: Final answer
x = 540,221.52
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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.