Finding the Fourth Proportional to 715,158.66, 1,070,966.48 and 489,739.08
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Solution
The fourth proportional to 715,158.66, 1,070,966.48 and 489,739.08 is: 733,395.49
Step by Step Solution
- Step 1: Write the proportion equation
715,158.66 : 1,070,966.48 = 489,739.08 : x - Step 2: Convert to fraction form
715,158.66/1,070,966.48 = 489,739.08/x - Step 3: Cross multiply
715,158.66x = 1,070,966.48 × 489,739.08 - Step 4: Simplify right side
715,158.66x = 524,494,138,626.04 - Step 5: Solve for x
x = 524,494,138,626.04/715,158.66 - Step 6: Final answer
x = 733,395.49
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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.