Finding the Fourth Proportional to 1,477,421.63, 2,216,132.16 and 355,490.63
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Solution
The fourth proportional to 1,477,421.63, 2,216,132.16 and 355,490.63 is: 533,235.88
Step by Step Solution
- Step 1: Write the proportion equation
1,477,421.63 : 2,216,132.16 = 355,490.63 : x - Step 2: Convert to fraction form
1,477,421.63/2,216,132.16 = 355,490.63/x - Step 3: Cross multiply
1,477,421.63x = 2,216,132.16 × 355,490.63 - Step 4: Simplify right side
1,477,421.63x = 787,814,217,721.66 - Step 5: Solve for x
x = 787,814,217,721.66/1,477,421.63 - Step 6: Final answer
x = 533,235.88
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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.