Finding the Fourth Proportional to 2,854,987.56, 3,939,885.36 and 1,565,853.12
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Solution
The fourth proportional to 2,854,987.56, 3,939,885.36 and 1,565,853.12 is: 2,160,878.69
Step by Step Solution
- Step 1: Write the proportion equation
2,854,987.56 : 3,939,885.36 = 1,565,853.12 : x - Step 2: Convert to fraction form
2,854,987.56/3,939,885.36 = 1,565,853.12/x - Step 3: Cross multiply
2,854,987.56x = 3,939,885.36 × 1,565,853.12 - Step 4: Simplify right side
2,854,987.56x = 6,169,281,783,398.32 - Step 5: Solve for x
x = 6,169,281,783,398.32/2,854,987.56 - Step 6: Final answer
x = 2,160,878.69
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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.