Finding the Fourth Proportional to 715,083.03, 987,455.34 and 533,479.68
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Solution
The fourth proportional to 715,083.03, 987,455.34 and 533,479.68 is: 736,679.99
Step by Step Solution
- Step 1: Write the proportion equation
715,083.03 : 987,455.34 = 533,479.68 : x - Step 2: Convert to fraction form
715,083.03/987,455.34 = 533,479.68/x - Step 3: Cross multiply
715,083.03x = 987,455.34 × 533,479.68 - Step 4: Simplify right side
715,083.03x = 526,787,358,797.49 - Step 5: Solve for x
x = 526,787,358,797.49/715,083.03 - Step 6: Final answer
x = 736,679.99
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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.