Finding the Fourth Proportional to 1,547,531.60, 2,319,329.10 and 1,378,257.80
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Solution
The fourth proportional to 1,547,531.60, 2,319,329.10 and 1,378,257.80 is: 2,065,633.70
Step by Step Solution
- Step 1: Write the proportion equation
1,547,531.60 : 2,319,329.10 = 1,378,257.80 : x - Step 2: Convert to fraction form
1,547,531.60/2,319,329.10 = 1,378,257.80/x - Step 3: Cross multiply
1,547,531.60x = 2,319,329.10 × 1,378,257.80 - Step 4: Simplify right side
1,547,531.60x = 3,196,633,422,841.98 - Step 5: Solve for x
x = 3,196,633,422,841.98/1,547,531.60 - Step 6: Final answer
x = 2,065,633.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.