Finding the Fourth Proportional to 739,262,722.64, 1,020,190,619.40 and 409,243,372.88
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Solution
The fourth proportional to 739,262,722.64, 1,020,190,619.40 and 409,243,372.88 is: 564,760,317.65
Step by Step Solution
- Step 1: Write the proportion equation
739,262,722.64 : 1,020,190,619.40 = 409,243,372.88 : x - Step 2: Convert to fraction form
739,262,722.64/1,020,190,619.40 = 409,243,372.88/x - Step 3: Cross multiply
739,262,722.64x = 1,020,190,619.40 × 409,243,372.88 - Step 4: Simplify right side
739,262,722.64x = 417,506,250,063,792,320 - Step 5: Solve for x
x = 417,506,250,063,792,320/739,262,722.64 - Step 6: Final answer
x = 564,760,317.65
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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.