Finding the Fourth Proportional to 879,420.38, 1,319,357.99 and 514,989.75
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Solution
The fourth proportional to 879,420.38, 1,319,357.99 and 514,989.75 is: 772,617.80
Step by Step Solution
- Step 1: Write the proportion equation
879,420.38 : 1,319,357.99 = 514,989.75 : x - Step 2: Convert to fraction form
879,420.38/1,319,357.99 = 514,989.75/x - Step 3: Cross multiply
879,420.38x = 1,319,357.99 × 514,989.75 - Step 4: Simplify right side
879,420.38x = 679,455,841,430.60 - Step 5: Solve for x
x = 679,455,841,430.60/879,420.38 - Step 6: Final answer
x = 772,617.80
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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.