Finding the Fourth Proportional to 983,013.09, 1,356,557.79 and 553,295.53
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Solution
The fourth proportional to 983,013.09, 1,356,557.79 and 553,295.53 is: 763,547.68
Step by Step Solution
- Step 1: Write the proportion equation
983,013.09 : 1,356,557.79 = 553,295.53 : x - Step 2: Convert to fraction form
983,013.09/1,356,557.79 = 553,295.53/x - Step 3: Cross multiply
983,013.09x = 1,356,557.79 × 553,295.53 - Step 4: Simplify right side
983,013.09x = 750,577,361,393.68 - Step 5: Solve for x
x = 750,577,361,393.68/983,013.09 - Step 6: Final answer
x = 763,547.68
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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.