Finding the Fourth Proportional to 1,118,420.12, 1,543,437.32 and 609,122.08
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Solution
The fourth proportional to 1,118,420.12, 1,543,437.32 and 609,122.08 is: 840,598.03
Step by Step Solution
- Step 1: Write the proportion equation
1,118,420.12 : 1,543,437.32 = 609,122.08 : x - Step 2: Convert to fraction form
1,118,420.12/1,543,437.32 = 609,122.08/x - Step 3: Cross multiply
1,118,420.12x = 1,543,437.32 × 609,122.08 - Step 4: Simplify right side
1,118,420.12x = 940,141,750,708.03 - Step 5: Solve for x
x = 940,141,750,708.03/1,118,420.12 - Step 6: Final answer
x = 840,598.03
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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.