Finding the Fourth Proportional to 1,130,475.69, 1,560,056.08 and 621,210.87
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Solution
The fourth proportional to 1,130,475.69, 1,560,056.08 and 621,210.87 is: 857,270.80
Step by Step Solution
- Step 1: Write the proportion equation
1,130,475.69 : 1,560,056.08 = 621,210.87 : x - Step 2: Convert to fraction form
1,130,475.69/1,560,056.08 = 621,210.87/x - Step 3: Cross multiply
1,130,475.69x = 1,560,056.08 × 621,210.87 - Step 4: Simplify right side
1,130,475.69x = 969,123,794,705.59 - Step 5: Solve for x
x = 969,123,794,705.59/1,130,475.69 - Step 6: Final answer
x = 857,270.80
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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.