Finding the Fourth Proportional to 749,349.10, 1,124,023.65 and 749,349.10
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Solution
The fourth proportional to 749,349.10, 1,124,023.65 and 749,349.10 is: 1,124,023.65
Step by Step Solution
- Step 1: Write the proportion equation
749,349.10 : 1,124,023.65 = 749,349.10 : x - Step 2: Convert to fraction form
749,349.10/1,124,023.65 = 749,349.10/x - Step 3: Cross multiply
749,349.10x = 1,124,023.65 × 749,349.10 - Step 4: Simplify right side
749,349.10x = 842,286,110,506.22 - Step 5: Solve for x
x = 842,286,110,506.22/749,349.10 - Step 6: Final answer
x = 1,124,023.65
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1.5x scale
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.