Finding the Fourth Proportional to 710,101.68, 979,935.12 and 387,811.68
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Solution
The fourth proportional to 710,101.68, 979,935.12 and 387,811.68 is: 535,177.28
Step by Step Solution
- Step 1: Write the proportion equation
710,101.68 : 979,935.12 = 387,811.68 : x - Step 2: Convert to fraction form
710,101.68/979,935.12 = 387,811.68/x - Step 3: Cross multiply
710,101.68x = 979,935.12 × 387,811.68 - Step 4: Simplify right side
710,101.68x = 380,030,285,178.20 - Step 5: Solve for x
x = 380,030,285,178.20/710,101.68 - Step 6: Final answer
x = 535,177.28
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1.5x scale
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.