Finding the Fourth Proportional to 1,125,683.09, 1,553,443.31 and 609,437.12
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Solution
The fourth proportional to 1,125,683.09, 1,553,443.31 and 609,437.12 is: 841,023.57
Step by Step Solution
- Step 1: Write the proportion equation
1,125,683.09 : 1,553,443.31 = 609,437.12 : x - Step 2: Convert to fraction form
1,125,683.09/1,553,443.31 = 609,437.12/x - Step 3: Cross multiply
1,125,683.09x = 1,553,443.31 × 609,437.12 - Step 4: Simplify right side
1,125,683.09x = 946,726,006,115.27 - Step 5: Solve for x
x = 946,726,006,115.27/1,125,683.09 - Step 6: Final answer
x = 841,023.57
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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.