Finding the Fourth Proportional to 518,977.10, 778,465.65 and 239,041.10
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Solution
The fourth proportional to 518,977.10, 778,465.65 and 239,041.10 is: 358,561.65
Step by Step Solution
- Step 1: Write the proportion equation
518,977.10 : 778,465.65 = 239,041.10 : x - Step 2: Convert to fraction form
518,977.10/778,465.65 = 239,041.10/x - Step 3: Cross multiply
518,977.10x = 778,465.65 × 239,041.10 - Step 4: Simplify right side
518,977.10x = 186,085,285,288.22 - Step 5: Solve for x
x = 186,085,285,288.22/518,977.10 - Step 6: Final answer
x = 358,561.65
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Similar ratio
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1.5x scale
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.