Finding the Fourth Proportional to 691,888.64, 1,038,132.68 and 371,666.88
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Solution
The fourth proportional to 691,888.64, 1,038,132.68 and 371,666.88 is: 557,661.32
Step by Step Solution
- Step 1: Write the proportion equation
691,888.64 : 1,038,132.68 = 371,666.88 : x - Step 2: Convert to fraction form
691,888.64/1,038,132.68 = 371,666.88/x - Step 3: Cross multiply
691,888.64x = 1,038,132.68 × 371,666.88 - Step 4: Simplify right side
691,888.64x = 385,839,534,201.64 - Step 5: Solve for x
x = 385,839,534,201.64/691,888.64 - Step 6: Final answer
x = 557,661.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.