Finding the Fourth Proportional to 520,259.84, 779,787.36 and 239,187.20
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Solution
The fourth proportional to 520,259.84, 779,787.36 and 239,187.20 is: 358,503.85
Step by Step Solution
- Step 1: Write the proportion equation
520,259.84 : 779,787.36 = 239,187.20 : x - Step 2: Convert to fraction form
520,259.84/779,787.36 = 239,187.20/x - Step 3: Cross multiply
520,259.84x = 779,787.36 × 239,187.20 - Step 4: Simplify right side
520,259.84x = 186,515,155,233.79 - Step 5: Solve for x
x = 186,515,155,233.79/520,259.84 - Step 6: Final answer
x = 358,503.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.