Finding the Fourth Proportional to 865,388,473.34, 1,194,296,701.24 and 489,079,838.98
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Solution
The fourth proportional to 865,388,473.34, 1,194,296,701.24 and 489,079,838.98 is: 674,964,430.81
Step by Step Solution
- Step 1: Write the proportion equation
865,388,473.34 : 1,194,296,701.24 = 489,079,838.98 : x - Step 2: Convert to fraction form
865,388,473.34/1,194,296,701.24 = 489,079,838.98/x - Step 3: Cross multiply
865,388,473.34x = 1,194,296,701.24 × 489,079,838.98 - Step 4: Simplify right side
865,388,473.34x = 584,106,438,336,934,528 - Step 5: Solve for x
x = 584,106,438,336,934,528/865,388,473.34 - Step 6: Final answer
x = 674,964,430.81
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Double scale
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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.