Finding the Fourth Proportional to 578,425.70, 867,638.55 and 578,425.70
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Solution
The fourth proportional to 578,425.70, 867,638.55 and 578,425.70 is: 867,638.55
Step by Step Solution
- Step 1: Write the proportion equation
578,425.70 : 867,638.55 = 578,425.70 : x - Step 2: Convert to fraction form
578,425.70/867,638.55 = 578,425.70/x - Step 3: Cross multiply
578,425.70x = 867,638.55 × 578,425.70 - Step 4: Simplify right side
578,425.70x = 501,864,435,630.74 - Step 5: Solve for x
x = 501,864,435,630.74/578,425.70 - Step 6: Final answer
x = 867,638.55
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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.