Finding the Fourth Proportional to 429,904.84, 643,873.74 and 205,423.06
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Solution
The fourth proportional to 429,904.84, 643,873.74 and 205,423.06 is: 307,664.63
Step by Step Solution
- Step 1: Write the proportion equation
429,904.84 : 643,873.74 = 205,423.06 : x - Step 2: Convert to fraction form
429,904.84/643,873.74 = 205,423.06/x - Step 3: Cross multiply
429,904.84x = 643,873.74 × 205,423.06 - Step 4: Simplify right side
429,904.84x = 132,266,513,924.44 - Step 5: Solve for x
x = 132,266,513,924.44/429,904.84 - Step 6: Final answer
x = 307,664.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.