Finding the Fourth Proportional to 626,545.62, 864,630.78 and 340,065.70
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Solution
The fourth proportional to 626,545.62, 864,630.78 and 340,065.70 is: 469,289.49
Step by Step Solution
- Step 1: Write the proportion equation
626,545.62 : 864,630.78 = 340,065.70 : x - Step 2: Convert to fraction form
626,545.62/864,630.78 = 340,065.70/x - Step 3: Cross multiply
626,545.62x = 864,630.78 × 340,065.70 - Step 4: Simplify right side
626,545.62x = 294,031,271,442.25 - Step 5: Solve for x
x = 294,031,271,442.25/626,545.62 - Step 6: Final answer
x = 469,289.49
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1.5x scale
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.