Finding the Fourth Proportional to 561,675.06, 774,878.40 and 408,376.08
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Solution
The fourth proportional to 561,675.06, 774,878.40 and 408,376.08 is: 563,389.45
Step by Step Solution
- Step 1: Write the proportion equation
561,675.06 : 774,878.40 = 408,376.08 : x - Step 2: Convert to fraction form
561,675.06/774,878.40 = 408,376.08/x - Step 3: Cross multiply
561,675.06x = 774,878.40 × 408,376.08 - Step 4: Simplify right side
561,675.06x = 316,441,803,468.67 - Step 5: Solve for x
x = 316,441,803,468.67/561,675.06 - Step 6: Final answer
x = 563,389.45
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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.