Finding the Fourth Proportional to 817,737.12, 1,128,477.29 and 455,153.21
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Solution
The fourth proportional to 817,737.12, 1,128,477.29 and 455,153.21 is: 628,111.46
Step by Step Solution
- Step 1: Write the proportion equation
817,737.12 : 1,128,477.29 = 455,153.21 : x - Step 2: Convert to fraction form
817,737.12/1,128,477.29 = 455,153.21/x - Step 3: Cross multiply
817,737.12x = 1,128,477.29 × 455,153.21 - Step 4: Simplify right side
817,737.12x = 513,630,053,037.45 - Step 5: Solve for x
x = 513,630,053,037.45/817,737.12 - Step 6: Final answer
x = 628,111.46
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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.