Finding the Fourth Proportional to 553,255.36, 763,565.14 and 311,585.18
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Solution
The fourth proportional to 553,255.36, 763,565.14 and 311,585.18 is: 430,028.52
Step by Step Solution
- Step 1: Write the proportion equation
553,255.36 : 763,565.14 = 311,585.18 : x - Step 2: Convert to fraction form
553,255.36/763,565.14 = 311,585.18/x - Step 3: Cross multiply
553,255.36x = 763,565.14 × 311,585.18 - Step 4: Simplify right side
553,255.36x = 237,915,581,588.63 - Step 5: Solve for x
x = 237,915,581,588.63/553,255.36 - Step 6: Final answer
x = 430,028.52
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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.