Finding the Fourth Proportional to 553,652.06, 764,011.58 and 311,948.91
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Solution
The fourth proportional to 553,652.06, 764,011.58 and 311,948.91 is: 430,473.57
Step by Step Solution
- Step 1: Write the proportion equation
553,652.06 : 764,011.58 = 311,948.91 : x - Step 2: Convert to fraction form
553,652.06/764,011.58 = 311,948.91/x - Step 3: Cross multiply
553,652.06x = 764,011.58 × 311,948.91 - Step 4: Simplify right side
553,652.06x = 238,332,578,048.63 - Step 5: Solve for x
x = 238,332,578,048.63/553,652.06 - Step 6: Final answer
x = 430,473.57
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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.