Finding the Fourth Proportional to 5,249,008.31, 7,873,512.57 and 1,259,920.31
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Solution
The fourth proportional to 5,249,008.31, 7,873,512.57 and 1,259,920.31 is: 1,889,880.49
Step by Step Solution
- Step 1: Write the proportion equation
5,249,008.31 : 7,873,512.57 = 1,259,920.31 : x - Step 2: Convert to fraction form
5,249,008.31/7,873,512.57 = 1,259,920.31/x - Step 3: Cross multiply
5,249,008.31x = 7,873,512.57 × 1,259,920.31 - Step 4: Simplify right side
5,249,008.31x = 9,919,998,417,667.08 - Step 5: Solve for x
x = 9,919,998,417,667.08/5,249,008.31 - Step 6: Final answer
x = 1,889,880.49
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Double scale
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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.