Finding the Fourth Proportional to 817,740.66, 1,128,473.46 and 455,158.74
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Solution
The fourth proportional to 817,740.66, 1,128,473.46 and 455,158.74 is: 628,114.25
Step by Step Solution
- Step 1: Write the proportion equation
817,740.66 : 1,128,473.46 = 455,158.74 : x - Step 2: Convert to fraction form
817,740.66/1,128,473.46 = 455,158.74/x - Step 3: Cross multiply
817,740.66x = 1,128,473.46 × 455,158.74 - Step 4: Simplify right side
817,740.66x = 513,634,558,177.04 - Step 5: Solve for x
x = 513,634,558,177.04/817,740.66 - Step 6: Final answer
x = 628,114.25
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.