Finding the Fourth Proportional to 518,824.74, 778,722.30 and 319,533.96
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Solution
The fourth proportional to 518,824.74, 778,722.30 and 319,533.96 is: 479,599.76
Step by Step Solution
- Step 1: Write the proportion equation
518,824.74 : 778,722.30 = 319,533.96 : x - Step 2: Convert to fraction form
518,824.74/778,722.30 = 319,533.96/x - Step 3: Cross multiply
518,824.74x = 778,722.30 × 319,533.96 - Step 4: Simplify right side
518,824.74x = 248,828,220,259.31 - Step 5: Solve for x
x = 248,828,220,259.31/518,824.74 - Step 6: Final answer
x = 479,599.76
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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.