Finding the Fourth Proportional to 961,507.40, 1,442,497.26 and 330,430.28
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Solution
The fourth proportional to 961,507.40, 1,442,497.26 and 330,430.28 is: 495,726.58
Step by Step Solution
- Step 1: Write the proportion equation
961,507.40 : 1,442,497.26 = 330,430.28 : x - Step 2: Convert to fraction form
961,507.40/1,442,497.26 = 330,430.28/x - Step 3: Cross multiply
961,507.40x = 1,442,497.26 × 330,430.28 - Step 4: Simplify right side
961,507.40x = 476,644,773,521.03 - Step 5: Solve for x
x = 476,644,773,521.03/961,507.40 - Step 6: Final answer
x = 495,726.58
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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.