Finding the Fourth Proportional to 989,788.29, 1,484,681.88 and 358,701.09
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Solution
The fourth proportional to 989,788.29, 1,484,681.88 and 358,701.09 is: 538,051.43
Step by Step Solution
- Step 1: Write the proportion equation
989,788.29 : 1,484,681.88 = 358,701.09 : x - Step 2: Convert to fraction form
989,788.29/1,484,681.88 = 358,701.09/x - Step 3: Cross multiply
989,788.29x = 1,484,681.88 × 358,701.09 - Step 4: Simplify right side
989,788.29x = 532,557,008,659.25 - Step 5: Solve for x
x = 532,557,008,659.25/989,788.29 - Step 6: Final answer
x = 538,051.43
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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.