Finding the Fourth Proportional to 939,681.19, 1,297,384.46 and 557,830.63
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Solution
The fourth proportional to 939,681.19, 1,297,384.46 and 557,830.63 is: 770,176.95
Step by Step Solution
- Step 1: Write the proportion equation
939,681.19 : 1,297,384.46 = 557,830.63 : x - Step 2: Convert to fraction form
939,681.19/1,297,384.46 = 557,830.63/x - Step 3: Cross multiply
939,681.19x = 1,297,384.46 × 557,830.63 - Step 4: Simplify right side
939,681.19x = 723,720,790,674.01 - Step 5: Solve for x
x = 723,720,790,674.01/939,681.19 - Step 6: Final answer
x = 770,176.95
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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.