Finding the Fourth Proportional to 709,831.80, 1,064,747.70 and 698,167.80
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Solution
The fourth proportional to 709,831.80, 1,064,747.70 and 698,167.80 is: 1,047,251.70
Step by Step Solution
- Step 1: Write the proportion equation
709,831.80 : 1,064,747.70 = 698,167.80 : x - Step 2: Convert to fraction form
709,831.80/1,064,747.70 = 698,167.80/x - Step 3: Cross multiply
709,831.80x = 1,064,747.70 × 698,167.80 - Step 4: Simplify right side
709,831.80x = 743,372,559,264.06 - Step 5: Solve for x
x = 743,372,559,264.06/709,831.80 - Step 6: Final answer
x = 1,047,251.70
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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.